- wlug - list.wlug.org.nz

Trend says hackers have weaponized SpringShell to install Mirai malware
by Peter Reutemann 12 Apr '22

12 Apr '22

'Researchers on Friday said that hackers are exploiting the recently discovered SpringShell vulnerability to successfully infect vulnerable Internet of Things devices with Mirai, an open source piece of malware that wrangles routers and other network-connected devices into sprawling botnets. The Internet’s biggest players are all affected by critical Log4Shell 0-day When SpringShell (also known as Spring4Shell) came to light last Sunday, some reports compared it to Log4Shell, the critical zero-day vulnerability in the popular logging utility Log4J that affected a sizable portion of apps on the Internet. That comparison proved to be exaggerated because the configurations required for SpringShell to work were by no means common. To date, there are no real-world apps known to be vulnerable. Researchers at Trend Micro now say that hackers have developed a weaponized exploit that successfully installs Mirai. A blog post they published didn’t identify the type of device or the CPU used in the infected devices. The post did, however, say a malware file server they found stored multiple variants of the malware for different CPU architectures.' -- source: https://arstechnica.com/information-technology/2022/04/trend-says-hackers-h… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Firefox downloads PDF files to home directory when viewing
by Peter Reutemann 12 Apr '22

12 Apr '22

Hi everyone One annoying new feature that showed up in Firefox recently is that it downloads PDF files to my home directory rather then /tmp when I'm only viewing them. The following thread discusses this: https://support.mozilla.org/en-US/questions/1370409 All you have to do is go to the configuration ("about:config" in URL bar) and change the following option to "false: browser.download.improvements_to_download_panel Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The End Of Byte Magazine
by Lawrence D'Oliveiro 12 Apr '22

12 Apr '22

I’ve been browsing through a few more of those old issues of Byte magazine, up to its shutdown in 1998. In the final, July, issue, among the items promised as “coming up in August”, was a “software lab report” on “free Unixes”: “We test Linux and FreeBSD to see how they measure up against their commercial cousins as servers and development platforms”. Presumably as per the typical magazine publishing pipeline, that report had already been done and written up by that point; I wonder if it ever got published anywhere ... Linux had been getting a few small mentions in the prior issues, along with other free software such as Perl for website development. Though the writers kept referring to these as “freeware” ... Also in that issue was a mention of an unusual new PC design, called the “Rock City”, from a company called the Panda Project. It was the shape of a cube, balanced on one corner (where the stand was attached). Hunting around, I found a short item, with one small, intriguing-looking picture, here <https://www.fatsofa.com/rockcity.html>. The actual company website is of course long gone; I tried looking for copies at archive.org, but while the text of the website back to 1998 is there, the pictures are not.

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Raspberry Pi OS Ditches Longtime User Account For Security Reasons
by Peter Reutemann 09 Apr '22

09 Apr '22

'Ars Technica: Since its launch, the Raspberry Pi OS (and most operating systems based on it) has shipped with a default "pi" user account, making it simpler to boot up a Pi and start working without needing to hook up the device to a monitor or go through a multi-step setup process. But as of today, that's changing -- new installs of the Raspberry Pi OS are shedding that default user account for both security and regulatory reasons. Raspberry Pi Foundation software engineer Simon Long explains the thinking in this blog post. "[The "pi" user account] could potentially make a brute-force attack slightly easier, and in response to this, some countries are now introducing legislation to forbid any Internet-connected device from having default login credentials," he writes. This move will improve the Pi operating system's security. Before, even if you assigned a good password to the "pi" account, attackers could still assume with a reasonable degree of certainty that most Raspberry Pi boards were using the "pi" username. Many Pi OS-based operating systems also ship with the default "pi" user account enabled and are completely passwordless, requiring extra steps to assign the account a password in the first place. The flip side is that the change could break some software and scripts, particularly those that are hard-coded to use the "pi" user account and home folder. "[T]he Raspberry Pi OS now boots into a dedicated setup mode the first time you start it up instead of running the setup wizard as an app in the normal desktop environment," adds Ars. "And that setup wizard now prompts you to create a username and password rather than simply assigning a password to the default 'pi' user account. To aid with setup, the wizard can now pair Bluetooth keyboards and mice without requiring you to plug in a USB accessory first." The new version of the Pi OS also includes experimental support for the Wayland display server protocol, but Long says most people should ignore it for now since it's explicitly labeled as "experimental."' -- source: https://hardware.slashdot.org/story/22/04/08/2032252 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Fedora Plans To Drop Support For Legacy BIOS Systems
by Peter Reutemann 08 Apr '22

08 Apr '22

'The Fedora 37 development team is considering dropping support for non-UEFI BIOS. Linuxiac reports: The Unified Extensible Firmware Interface, or UEFI, is a modern method of handling the boot process. UEFI is similar to Legacy; however, the boot data is stored in a .efi file rather than the firmware. In the case of Fedora, while the change may take some time, the new Fedora x86_64 installations will no longer work on non-UEFI platforms. On x86_64 architectures, Fedora 37 will mark legacy BIOS installation as deprecated in favor of UEFI. While systems already using Legacy BIOS to boot will continue to be supported, new Legacy BIOS installations on these architectures will be impossible. ' -- source: https://linux.slashdot.org/story/22/04/07/2049257 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Chinese Hackers Abuse VLC Media Player To Launch Malware Loader
by Peter Reutemann 08 Apr '22

08 Apr '22

'Security researchers have uncovered a long-running malicious campaign from hackers associated with the Chinese government who are using VLC Media Player to launch a custom malware loader. BleepingComputer reports: The campaign appears to serve espionage purposes and has targeted various entities involved in government, legal, and religious activities, as well as non-governmental organizations (NGOs) on at least three continents. This activity has been attributed to a threat actor tracked as Cicada (a.k.a. menuPass, Stone Panda, Potassium, APT10, Red Apollo) that has been active for more than 15 years, since at least 2006. Brigid O Gorman of Symantec Threat Hunter Team told BleepingComputer that the attacker uses a clean version of VLC with a malicious DLL file in the same path as the media player's export functions. The technique is known as DLL side-loading and it is widely used by threat actors to load malware into legitimate processes to hide the malicious activity. Apart from the custom loader, which O Gorman said Symantec does not have a name but has been seen in previous attacks attributed to Cicada/APT10, the adversary also deployed a WinVNC server to gain remote control over victim systems. The attacker also executed the Sodamaster backdoor on compromised networks, a tool believed to be used exclusively by the Cicada threat group since at least 2020. Sodamaster runs in the system memory (fileless) and is equipped to evade detection by looking in the registry for clues of a sandbox environment or by delaying its execution. The malware can also collect details about the system, search for running processes, and download and execute various payloads from the command and control server. [...] The attackers' dwell time on the networks of some of the discovered victims lasted for as long as nine months, the researchers note in a report today. ' -- source: https://it.slashdot.org/story/22/04/06/2144218 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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disable "Pocket" in Firefox
by Peter Reutemann 08 Apr '22

08 Apr '22

Hi everyone If you find that "Pocket" in Firefox is getting in your way or you simply don't want to use it, just do the following to disable it: - in the URL bar, type about:config (and click on "show all") - and toggle "extensions.pocket.enabled" to "false" >From here: https://support.mozilla.org/en-US/kb/disable-or-re-enable-pocket-for-firefox Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Zyxel patches critical vulnerability that can allow Firewall and VPN hijacks
by Peter Reutemann 05 Apr '22

05 Apr '22

'Hardware manufacturer Zyxel has issued patches for a highly critical security flaw that gives malicious hackers the ability to take control of a wide range of firewalls and VPN products the company sells to businesses. The flaw is an authentication bypass vulnerability that stems from a lack of a proper access-control mechanism in the CGI (common gateway interface) of affected devices, the company said. Access control refers to a set of policies that rely on passwords and other forms of authentication to ensure resources or data are available only to authorized people. The vulnerability is tracked as CVE-2022-0342. “The flaw could allow an attacker to bypass the authentication and obtain administrative access of the device,” Zyxel said in an advisory. The severity rating is 9.8 out of a possible 10.' -- source: https://arstechnica.com/information-technology/2022/04/zyxel-patches-critic… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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'Infinite Mac' Project Lets You Boot Up Mac OS In Your Browser
by Peter Reutemann 03 Apr '22

03 Apr '22

'Ars Technica: What makes the ["Infinite Mac"] project unique isn't necessarily the fact that it's browser-based; it has been possible to run old DOS, Windows, and Mac OS versions in browser windows for quite a while now. Instead, it's the creative solutions that developer Mihai Parparita has come up with to enable persistent storage, fast download speeds, reduced processor usage, and file transfers between the classic Mac and whatever host system you're running it on. Parparita details some of his work in this blog post. Beginning with a late 2017 browser-based port of the Basilisk II emulator, Parparita wanted to install old apps to more faithfully re-create the experience of using an old Mac, but he wanted to do it without requiring huge downloads or running as a separate program as the Macintosh.js project does. To solve the download problem, Parparita compressed the disk image and broke it up into 256K chunks that are downloaded on demand rather than up front. "Along with some old fashioned web optimizations, this makes the emulator show the Mac's boot screen in a second and be fully booted in 3 seconds, even with a cold HTTP cache," Parparita wrote. CPU usage was another issue. Old operating systems and processors didn't really distinguish between active and idle processor states -- your computer was either on or off. So when you emulate these old systems, they'll ramp one of your CPU cores to 100% whether you're actually using the emulator or not. Parparita used existing Basilisk II features to reduce CPU usage, only requiring full performance when "there was user input or a screen refresh was required." Infinite Mac won't run later releases of classic Mac OS (including 8.5, 8.6, and 9) because those releases ran exclusively on PowerPC Macs, dropping support for the old Motorola 68000-based processors. Emulators like QEMU are capable of emulating PowerPC Macs, but (at least as far as I am aware) there are no easy browser-based implementations that exist. Not yet, anyway.' -- source: https://apple.slashdot.org/story/22/04/01/2032251 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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StarFive VisionFive RISC-V Single Board Computer
by Lawrence D'Oliveiro 29 Mar '22

29 Mar '22

A few videos have appeared on YouTube in the last few days about this VisionFive board. Instead of an ARM chip, it uses a RISC-V CPU, but of course it runs Linux. It’s quite clearly gunning for the Raspberry π market, both in its configuration and pricewise, though I don’t think it’s as powerful as a π 4. StarFive Technology have a few quite technical-looking videos on their channel, seemingly going into details like how the OS boots. I’ll see if I can find a decent hands-on review.

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Mozilla To Offer MDN Premium Tier
by Lawrence D'Oliveiro 28 Mar '22

28 Mar '22

The Mozilla Developer Network <https://developer.mozilla.org/en-US/docs/Web> is a really good resource if you’re doing any kind of web development. I’ve found all kinds of well-explained technical detail there that is simply missing from other sources (*cough* w3schools *cough*). Now Mozilla is trying to get some money from it. They’re not taking anything away from existing access, they are merely offering extra personalization features on a paid basis <https://www.theregister.com/2022/03/24/mozillas_mdn_subscription/>.

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'Rolling Rhino' Tool Converts Ubuntu Into a Rolling Release
by Peter Reutemann 28 Mar '22

28 Mar '22

'"Rolling Rhino is a tool long ago created by Martin Wimpress, who until recently was part of the Canonical team," one Linux blog pointed out recently. "What it does is basically change the repositories of the DailyLive developers...." Neowin sees it as a competitive advantage. After more than 17 years, there's a way to get a Ubuntu distro offering the same "rolling" release cycles that helped popularize Arch Linux: While there are many positive qualities that would draw a user into the world of Arch, its headlining feature would be the one that remains the most relevant in today's world of continuous integration and delivery and that's its rolling release strategy. While I don't think Judd Vinet could have predicted the proliferation of DevOps or the massive shift to cloud computing, it must be interesting to see that the entire industry is following the Arch strategy in all sorts of different places. One could even argue that Microsoft Windows has become a rolling release. While many of Arch's contemporaries have joined the fray, one notable open-source giant has yet to make the leap. Rolling Rhino looks to change that by converting Ubuntu into a rolling release.' -- source: https://news.slashdot.org/story/22/03/27/0035232 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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KDE's New Swipe Gesture Makes Windows 11 Look Bad
by Peter Reutemann 28 Mar '22

28 Mar '22

'"Microsoft has been struggling to reach a state of convergence between tablet and desktop ever since Windows 8 and the original Surface," argues Neowin, adding "If we're using Windows 11 as a barometer of their progress, they'll likely never get there...." But meanwhile, writes Slashdot reader segaboy81, "KDE's new swipe gesture is awesome. It's about 1000% smoother than the overview in Windows 11 and the swiping mechanism is easier, too. Is KDE getting better for tablets?" >From Neowin's report: Starting in KDE Plasma 5.25, users with touch screen devices will be able to enter their tasks and virtual desktops overview by simply swiping down from the top edge, but with a special twist. The scale of the windows directly follows the path of your finger. The result is every bit as fluid as you might imagine. While you can achieve the same result in Windows 11 with a simple three-finger swipe up, this implementation looks great and performs great too.' -- source: https://tech.slashdot.org/story/22/03/27/201245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Asahi Linux Is Reverse-Engineering Support For Apple Silicon, Including M1 Ultra
by Peter Reutemann 27 Mar '22

27 Mar '22

'Ars Technica: For months, a small group of volunteers has worked to get this Arch Linux-based distribution up and running on Apple Silicon Macs, adapting existing drivers and (in the case of the GPU) painstakingly writing their own. And that work is paying off -- last week, the team released its first alpha installer to the general public, and as of yesterday, the software supports the new M1 Ultra in the Mac Studio. In the current alpha, an impressive list of hardware already works, including Wi-Fi, USB 2.0 over the Thunderbolt ports (USB 3.0 only works on Macs with USB-A ports, but USB 3.0 over Thunderbolt is "coming soon"), and the built-in display. But there are still big features missing, including DisplayPort and Thunderbolt, the webcam, Bluetooth, sleep mode, and GPU acceleration. That said, regarding GPU acceleration, the developers say that the M1 is fast enough that a software-rendered Linux desktop feels faster on the M1 than a GPU-accelerated desktop feels on many other ARM chips. Asahi's developers don't think the software will be "done," with all basic M1-series hardware and functionality supported and working out of the box, "for another year, maybe two." By then, Apple will probably have introduced another generation or two of M-series chips. But the developers are optimistic that much of the work they're doing now will continue to work on future generations of Apple hardware with relatively minimal effort. [...] If you want to try Asahi Linux on an M1 Mac, the current installer is run from the command line and requires "at least 53GB of free space" for an install with a KDE Plasma desktop. Asahi only needs about 15GB, but the installer requires you to leave at least 38GB of free space to the macOS install so that macOS system updates don't break. From there, dual-booting should work similarly to the process on Intel Macs, with the alternate OS visible from within Startup Disk or the boot picker you can launch when your start your Mac. Future updates should be installable from within your new Asahi Linux installation and shouldn't require you to reinstall from scratch.' -- source: https://linux.slashdot.org/story/22/03/25/2333245 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Ted Nelson Quote From 1995
by Lawrence D'Oliveiro 26 Mar '22

26 Mar '22

I was prompted to browse through old scanned issues of “Byte” magazine (available from vintageapple.org) after watching a YouTube video by a guy who has collected a complete set of actual paper issues <https://www.youtube.com/watch?v=0lU537upx3c>. In the November 1995 issue, there was a back-page column by Ted Nelson (originator of the terms “hypertext” and “hypermedia”) called “Things To Come”, where he casually threw out a bunch of prognostications on how he thought computing would develop. I was struck by this quote, under the title “Tomorrow’s killer applications”: My hope is that there will be no more applications, because future software will be set up to be tied together, piped together, scripted together. I would say that has partially come true. We have a lot of software components now that can be reused via scriptable APIs, or even just shell scripts. However, nobody considered that such usage is the anithesis of how GUIs work. Most of the predictions in the rest of the column were, shall we say, a bit wide of the mark. For example, the next sentence after the above was “The real killer applications will be nanotech bugs that escape”, which is perhaps best left to just lie there quietly ...

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topic for next wlug meeting?
by Peter Reutemann 25 Mar '22

25 Mar '22

Hi everyone At this stage, we don't have a speaker lined up for this month's virtual meeting (we're still at the Red traffic light). With the current world situation and increasing cyber security threats, I was wondering whether we should have a meeting where we discuss together (and showcase) various tools that we can run or use to make our online life safer. A non-exhaustive list: firewalls, virus scanners, rootkit detectors, VPNs. Thoughts? Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Two Years After Chrome and Edge, Firefox is Getting AV1 Hardware Acceleration
by Peter Reutemann 24 Mar '22

24 Mar '22

'Firefox is finally gaining proper AV1 support. Neowin reports: According to an update made to a post on Bugzilla, the Mozilla Foundation is finally ready to add hardware acceleration for the AV1 video format. Developers plan to implement improved AV1 support in the upcoming release of Firefox 100, scheduled to arrive on May 3, 2022. Hardware acceleration for AV1 video brings several noticeable benefits to customers. The standard developed by Alliance for Open Media and initially released in March 2018 offers better video compression than H.264 (about 50%) and VP9 (about 20%). Shifting AV1 video processing from software to hardware improves efficiency and reduces energy consumption, resulting in better battery life on tablets and laptops. Google and Microsoft announced hardware-accelerated AV1 video in Chrome and Edge in late 2020. Mozilla, on the other hand, did not rush to introduce improved AV1 support in Firefox. While it is easy to dunk on Firefox, there is a reason why developers took their time. Hardware-accelerated AV1 video is not something you can add to any computer with Windows 10, and it requires a PC with the most recent and powerful hardware.' -- source: https://news.slashdot.org/story/22/03/23/1359219 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Android's Messages, Dialer Apps Quietly Sent Text, Call Info To Google
by Peter Reutemann 23 Mar '22

23 Mar '22

'Google's Messages and Dialer apps for Android devices have been collecting and sending data to Google without specific notice and consent, and without offering the opportunity to opt-out, potentially in violation of Europe's data protection law. From a report: According to a research paper, "What Data Do The Google Dialer and Messages Apps On Android Send to Google?" [PDF], by Trinity College Dublin computer science professor Douglas Leith, Google Messages (for text messaging) and Google Dialer (for phone calls) have been sending data about user communications to the Google Play Services Clearcut logger service and to Google's Firebase Analytics service. "The data sent by Google Messages includes a hash of the message text, allowing linking of sender and receiver in a message exchange," the paper says. "The data sent by Google Dialer includes the call time and duration, again allowing linking of the two handsets engaged in a phone call. Phone numbers are also sent to Google." The timing and duration of other user interactions with these apps has also been transmitted to Google. And Google offers no way to opt-out of this data collection. [...] Both pre-installed versions of these apps, the paper observes, lack app-specific privacy policies that explain what data gets collected -- something Google requires from third-party developers. And when a request was made through Google Takeout for the Google Account data associated with the apps used for testing, the data Google provided did not include the telemetry data observed.' -- source: https://yro.slashdot.org/story/22/03/22/2146234 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linux Random Number Generator Sees Major Improvements
by Peter Reutemann 22 Mar '22

22 Mar '22

'An anonymous Slashdot reader summarizes some important news from the web page of Jason Donenfeld (creator of the open-source VPN protocol WireGuard): The Linux kernel's random number generator has seen its first set of major improvements in over a decade, improving everything from the cryptography to the interface used. Not only does it finally retire SHA-1 in favor of BLAKE2s [in Linux kernel 5.17], but it also at long last unites '/dev/random' and '/dev/urandom' [in the upcoming Linux kernel 5.18], finally ending years of Slashdot banter and debate: The most significant outward-facing change is that /dev/random and /dev/urandom are now exactly the same thing, with no differences between them at all, thanks to their unification in random: block in /dev/urandom. This removes a significant age-old crypto footgun, already accomplished by other operating systems eons ago. [...] The upshot is that every Internet message board disagreement on /dev/random versus /dev/urandom has now been resolved by making everybody simultaneously right! Now, for the first time, these are both the right choice to make, in addition to getrandom(0); they all return the same bytes with the same semantics. There are only right choices. Phoronix adds: One exciting change to also note is the getrandom() system call may be a hell of a lot faster with the new kernel. The getrandom() call for obtaining random bytes is yielding much faster performance with the latest code in development. Intel's kernel test robot is seeing an 8450% improvement with the stress-ng getrandom() benchmark. Yes, an 8450% improvement.' -- source: https://linux.slashdot.org/story/22/03/19/1821254 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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KDE Konsole Shows Colours!
by Lawrence D'Oliveiro 22 Mar '22

22 Mar '22

I noticed this happening in my Konsole terminal windows very occasionally over the last couple of months: a little coloured square with a black border would momentarily appear, then disappear when I moved the mouse. I never quite figured out what was going on, thought it was a window manager glitch or something ... until today. It appears Konsole has this (undocumented?) feature where, if you hover over the name of a colour in a terminal session, it will helpfully pop up this square showing what the colour looks like. The colour names come from the traditional X11 set in /usr/share/X11/rgb.txt, with limits: it only looks at single-word names, and does not match names with numeric suffixes. Thus, “darkmagenta” will work (case-insensitive match against “DarkMagenta”), while “dark magenta” only matches the “magenta” part, and “magenta1” is not recognized at all. It will also recognize a sequence of 3 or 6 hex digits preceded by “#” -- “#rgb” or “#rrggbb”, as commonly used in HTML. Just tried 8 hex digits -- “#rrggbbaa” with alpha transparency -- and that works too. This feature might be new in Konsole 21.08 or something.

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Browser-in-the-Browser Attack Can Trick Even Savvy Users
by Peter Reutemann 22 Mar '22

22 Mar '22

'Ars Technica: Hundreds of thousands of sites use the OAuth protocol to let visitors login using their existing accounts with companies like Google, Facebook, or Apple. Instead of having to create an account on the new site, visitors can use an account that they already have -- and the magic of OAuth does the rest. The Browser-in-the-Browser (BitB) technique capitalizes on this scheme. Instead of opening a genuine second browser window that's connected to the site facilitating the login or payment, BitB uses a series of HTML and cascading style sheets (CSS) tricks to convincingly spoof the second window. The URL that appears there can show a valid address, complete with a padlock and HTTPS prefix. The layout and behavior of the window appear identical to the real thing. While the method is convincing, it has a few weaknesses that should give savvy visitors a foolproof way to detect that something is amiss. Genuine OAuth or payment windows are in fact separate browser instances that are distinct from the primary page. That means a user can resize them and move them anywhere on the monitor, including outside the primary window. BitB windows, by contrast, aren't a separate browser instance at all. Instead, they're images rendered by custom HTML and CSS and contained in the primary window. That means the fake pages can't be resized, fully maximized or dragged outside the primary window. All users should protect their accounts with two-factor authentication. One other thing more experienced users can do is right click on the popup page and choose "inspect." If the window is a BitB spawn, its URL will be hardcoded into the HTML. ' -- source: https://it.slashdot.org/story/22/03/21/236242 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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A big bet to kill the password for good
by Peter Reutemann 21 Mar '22

21 Mar '22

'After years of tantalizing hints that a passwordless future is just around the corner, you're probably still not feeling any closer to that digital unshackling. Ten years into working on the issue, though, the FIDO Alliance, an industry association that specifically works on secure authentication, thinks it has finally identified the missing piece of the puzzle. On Thursday, the organization published a white paper that lays out FIDO's vision for solving the usability issues that have dogged passwordless features and, seemingly, kept them from achieving broad adoption. FIDO's members collaborated to produce the paper, and they span chipmakers like Intel and Qualcomm, prominent platform developers like Amazon and Meta, financial institutions like American Express and Bank of America, and the developers of all major operating systems—Google, Microsoft, and Apple. The paper is conceptual, not technical, but after years of investment to integrate what are known as the FIDO2 and WebAuthn passwordless standards into Windows, Android, iOS, and more, everything is now riding on the success of this next step.' -- source: https://arstechnica.com/information-technology/2022/03/a-big-bet-to-kill-th… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Trickbot is using MikroTik routers to ply its trade. Now we know why
by Peter Reutemann 18 Mar '22

18 Mar '22

'For years, malicious hackers have been hacking large fleets of MikroTik routers and conscripting them into Trickbot, one of the Internet’s most destructive botnets. Now, Microsoft has finally figured out why and how the routers are being put to use. Trickbot came to light in 2016 as a trojan for stealing account passwords for use in bank fraud. Since then, Trickbot has mushroomed into one of the Internet's most aggressive threat platforms, thanks to its highly modular, multistage malware framework that provides a full suite of tools that are used to install ransomware and other forms of malware from other hacking groups. The malware driving Trickbot is notable for its advanced capabilities. It excels at gaining powerful administrator privileges, spreading rapidly from computer to computer in networks, and performing reconnaissance that identifies infected computers belonging to high-value targets. The malware often uses readily available software like Mimikatz or exploits like EternalBlue, which was stolen from the National Security Agency.' -- source: https://arstechnica.com/information-technology/2022/03/trickbot-is-using-mi… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Researcher uses Dirty Pipe exploit to fully root a Pixel 6 Pro and Samsung S22
by Peter Reutemann 17 Mar '22

17 Mar '22

'A researcher has successfully used the critical Dirty Pipe vulnerability in Linux to fully root two models of Android phones—a Pixel 6 Pro and Samsung S22—in a hack that demonstrates the power of exploiting the newly discovered OS flaw. The researcher chose those two handset models for a good reason: they are two of the few—if not the only—devices known to run Android version 5.10.43, the only release of Google's mobile OS that's vulnerable to Dirty Pipe. Because the LPE, or local privilege escalation, vulnerability wasn't introduced until the recently released version 5.8 of the Linux kernel, the universe of exploitable devices—whether mobile, Internet of Things, or servers and desktops—is relatively small.' -- source: https://arstechnica.com/information-technology/2022/03/researcher-uses-dirt… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Nasty Linux Netfilter Firewall Security Hole Found
by Peter Reutemann 16 Mar '22

16 Mar '22

'Sophos threat researcher Nick Gregory discovered a hole in Linux's netfilter firewall program that's "exploitable to achieve kernel code execution (via ROP [return-oriented programming]), giving full local privilege escalation, container escape, whatever you want." ZDNet reports: Behind almost all Linux firewalls tools such as iptables; its newer version, nftables; firewalld; and ufw, is netfilter, which controls access to and from Linux's network stack. It's an essential Linux security program, so when a security hole is found in it, it's a big deal. [...] This problem exists because netfilter doesn't handle its hardware offload feature correctly. A local, unprivileged attacker can use this to cause a denial-of-service (DoS), execute arbitrary code, and cause general mayhem. Adding insult to injury, this works even if the hardware being attacked doesn't have offload functionality! That's because, as Gregory wrote to a security list, "Despite being in code dealing with hardware offload, this is reachable when targeting network devices that don't have offload functionality (e.g. lo) as the bug is triggered before the rule creation fails." This vulnerability is present in the Linux kernel versions 5.4 through 5.6.10. It's listed as Common Vulnerabilities and Exposures (CVE-2022-25636), and with a Common Vulnerability Scoring System (CVSS) score of 7.8), this is a real badie. How bad? In its advisory, Red Hat said, "This flaw allows a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a privilege escalation threat." So, yes, this is bad. Worse still, it affects recent major distribution releases such as Red Hat Enterprise Linux (RHEL) 8.x; Debian Bullseye; Ubuntu Linux, and SUSE Linux Enterprise 15.3. While the Linux kernel netfilter patch has been made, the patch isn't available yet in all distribution releases. ' -- source: https://linux.slashdot.org/story/22/03/15/221258 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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A brief tour of the PDP-11, the most influential minicomputer of all time
by Peter Reutemann 15 Mar '22

15 Mar '22

'The history of computing could arguably be divided into three eras: that of mainframes, minicomputers, and microcomputers. Minicomputers provided an important bridge between the first mainframes and the ubiquitous micros of today. This is the story of the PDP-11, the most influential and successful minicomputer ever. In their moment, minicomputers were used in a variety of applications. They served as communications controllers, instrument controllers, large system pre-processors, desk calculators, and real-time data acquisition handlers. But they also laid the foundation for significant hardware architecture advances and contributed greatly to modern operating systems, programming languages, and interactive computing as we know them today. In today’s world of computing, in which every computer runs some variant of Windows, Mac, or Linux, it’s hard to distinguish between the CPUs underneath the operating system. But there was a time when differences in CPU architecture were a big deal. The PDP-11 helps explain why that was the case. The PDP-11 was introduced in 1970, a time when most computing was done on expensive GE, CDC, and IBM mainframes that few people had access to. There were no laptops, desktops, or personal computers. Programming was done by only a few companies, mostly in assembly, COBOL, and FORTRAN. Input was done on punched cards, and programs ran in non-interactive batch runs.' -- source: https://arstechnica.com/gadgets/2022/03/a-brief-tour-of-the-pdp-11-the-most… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Researcher uses 379-year-old algorithm to crack crypto keys found in the wild
by Peter Reutemann 15 Mar '22

15 Mar '22

'Cryptographic keys generated with older software now owned by technology company Rambus are weak enough to be broken instantly using commodity hardware, a researcher reported on Monday. This revelation is part of an investigation that also uncovered a handful of weak keys in the wild. The software comes from a basic version of the SafeZone Crypto Libraries, which were developed by a company called Inside Secure and acquired by Rambus as part of its 2019 acquisition of Verimatrix, a Rambus representative said. That version was deprecated prior to the acquisition and is distinct from a FIPS-certified version that the company now sells under the Rambus FIPS Security Toolkit brand. Researcher Hanno Böck said that the vulnerable SafeZone library doesn't sufficiently randomize the two prime numbers it used to generate RSA keys. (These keys can be used to secure Web traffic, shells, and other online connections.) Instead, after the SafeZone tool selects one prime number, it chooses a prime in close proximity as the second one needed to form the key. "The problem is that both primes are too similar," Böck said in an interview. "So the difference between the two primes is really small." The SafeZone vulnerability is tracked as CVE-2022-26320. Cryptographers have long known that RSA keys that are generated with primes that are too close together can be trivially broken with Fermat's factorization method. French mathematician Pierre de Fermat first described this method in 1643.' -- source: https://arstechnica.com/information-technology/2022/03/researcher-uses-600-… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Intel Finds Bug In AMD's Spectre Mitigation, AMD Issues Fix
by Peter Reutemann 14 Mar '22

14 Mar '22

'"News of a fresh Spectre BHB vulnerability that only impacts Intel and Arm processors emerged this week," reports Tom's Hardware, "but Intel's research around these new attack vectors unearthed another issue. "One of the patches that AMD has used to fix the Spectre vulnerabilities has been broken since 2018." Intel's security team, STORM, found the issue with AMD's mitigation. In response, AMD has issued a security bulletin and updated its guidance to recommend using an alternative method to mitigate the Spectre vulnerabilities, thus repairing the issue anew.... Intel's research into AMD's Spectre fix begins in a roundabout way — Intel's processors were recently found to still be susceptible to Spectre v2-based attacks via a new Branch History Injection variant, this despite the company's use of the Enhanced Indirect Branch Restricted Speculation (eIBRS) and/or Retpoline mitigations that were thought to prevent further attacks. In need of a newer Spectre mitigation approach to patch the far-flung issue, Intel turned to studying alternative mitigation techniques. There are several other options, but all entail varying levels of performance tradeoffs. Intel says its ecosystem partners asked the company to consider using AMD's LFENCE/JMP technique. The "LFENCE/JMP" mitigation is a Retpoline alternative commonly referred to as "AMD's Retpoline." As a result of Intel's investigation, the company discovered that the mitigation AMD has used since 2018 to patch the Spectre vulnerabilities isn't sufficient — the chips are still vulnerable. The issue impacts nearly every modern AMD processor spanning almost the entire Ryzen family for desktop PCs and laptops (second-gen to current-gen) and the EPYC family of datacenter chips.... In response to the STORM team's discovery and paper, AMD issued a security bulletin (AMD-SB-1026) that states it isn't aware of any currently active exploits using the method described in the paper. AMD also instructs its customers to switch to using "one of the other published mitigations (V2-1 aka 'generic retpoline' or V2-4 aka 'IBRS')." The company also published updated Spectre mitigation guidance reflecting those changes [PDF].... AMD's security bulletin thanks Intel's STORM team by name and noted it engaged in the coordinated vulnerability disclosure, thus allowing AMD enough time to address the issue before making it known to the public. ' -- source: https://hardware.slashdot.org/story/22/03/13/200224 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Copper Lines To Be Cut Starting September
by Lawrence D'Oliveiro 14 Mar '22

14 Mar '22

First I heard about it today, but it’s the beginning of the end for copper phone lines; Chorus is going to cut off a few installations (“fewer than 5000”) on a trial basis later this year <https://www.stuff.co.nz/business/124317060/first-copper-phone-services-to-b…>: Chorus chief executive Jean-Baptiste Rousselot said that outside of those “limited initial trial areas” no-one should feel under any pressure to move off copper. This will only happen in areas where the takeup of fibre is already high, and customers will get six months’ notice.

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Arch Linux Turns 20
by Peter Reutemann 13 Mar '22

13 Mar '22

'"Arch Linux, the rolling Linux distribution that powers Valve's Steam Deck is now 20 years old," reports Neowin. Slashdot reader segaboy81 writes that "What's cool to see here is that everything changed behind the scenes, but on the surface, things are the same." From the article: Announced on March 11th, 2002, and codenamed Homer, version 0.1 was released to minor fanfare. The release notes were a far cry from today's, essentially announcing it had broken ground and the foundation was going in, as it were. Homer's release notes: I've finally got a bootable iso image on the ftp site. The bad news is that you don't get a pretty interactive installer. But if you wanted one of those, you would have gone with RedHat, right? ;) I'll try to get the docs up for ABS (Arch Build System) which, IMHO, is one of the best advantages of Arch. With ABS, you can easily create new packages, and it's trivial to rebuild existing packages with your own customizations.... It shipped with Linux kernel 2.4.18 which many of the Linux old-timers (myself included) will remember was right before we started to get nice things like auto-mounting USB drives in kernel 2.6. XFree86 4.2.0 was also in stow, which is what we now call Xorg. If you wanted to build software, you had to use an absolutely ancient gcc toolchain (2.95.3). Web browsing was covered by the ghost of Netscape Navigator, Mozilla 0.9.9. Heady days, these were!' -- source: https://linux.slashdot.org/story/22/03/12/0251257 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Brave takes on the creepy websites that override your privacy settings
by Peter Reutemann 10 Mar '22

10 Mar '22

'Some websites just can't take "no" for an answer. Instead of respecting visitors' choice to block third-party cookies—the identifiers that track browsing activity as a user moves from site to site—they find sneaky ways to bypass those settings. Now, makers of the Brave browser are taking action. Earlier this week, Brave Nightly—the testing and development version of the browser—rolled out a feature that's designed to prevent what's known as bounce tracking. The new feature, known as unlinkable bouncing, will roll out for general release in Brave version 1.37 slated for March 29.' -- source: https://arstechnica.com/information-technology/2022/03/brave-has-a-plan-to-… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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System76 Launch review: Linux-friendly keyboard with a USB hub
by Peter Reutemann 09 Mar '22

09 Mar '22

'The Launch is System76's first mechanical keyboard, but it could be the last keyboard you need. With hot-swappable mechanical switches, legends that won't fade, a durable build, and a pair of detachable cables, this tenkeyless board can evolve with you. It's also open source—from its chassis to its PCB and firmware—allowing for deeper tinkering. There are even some extra keycaps for when you want a new look. And in true System76 style, the board favors Linux users. At $285, though, the Launch is a big investment, and many won't like how hard it is to press the keys. The clicky mechanical switches are so tactile that they'll tire some fingers out.' -- source: https://arstechnica.com/gadgets/2022/03/system76-launch-review-linux-friend… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Open Source Zone Grinds Away At Patent Trolls
by Peter Reutemann 09 Mar '22

09 Mar '22

'For the last two years, Unified Patents, an international organization of over 200 businesses, has been winning the battle against patent trolls "to keep them from stealing from the companies and organizations that actually use patents' intellectual property (IP)," writes ZDNet's Steven Vaughan Nichols. "This is their story to date." From the report: Unified Patents brings the fight to the trolls. It deters patent trolls from attacking its members by making it too expensive for the troll to win. The group does this by examining troll patents and their activities in various technology sectors (Zones). The United Patents Open Source Software Zone (OSS Zone) is the newest of these Zones. [...] Even before OSS Zone was formally launched, Unified Patents along with the Open Invention Network (OIN), the world's largest patent non-aggression group, launched legal cases against poor quality PAE-owned (Patent Assertion Entities) patents. The Linux Foundation and Microsoft have also joined the OSS Zone to battle these bad patents. [...] Together, United Patents uses open-source software evidence as proof to establish that the trolls often don't have a case. This is done using Inter Partes Review (IPR), a 2012 legal tool for showing that a bad patent never should have been granted in the first place. [Linux Foundation Executive Director Jim Zemlin] notes, "The Patent Trial and Appeal Board (PTAB)'s discretionary rulings on IPRs have changed the landscape around NPEs. These cases take a long time to be resolved. Typically, it takes from 12 to 24 months. That also makes them expensive for both the OSS Zone and the trolls. Keith Bergelt, the OIN's CEO, said "In other technology areas when patents go through the IPR process or are reexamined, there is a settlement around 20% of the time. In the OSS Zone, there are few settlements. This makes it more costly and difficult to administer, but also is difficult on the PAEs. When the success rate against their patents is over 95%, certain PAEs that would otherwise hope to settle have essentially given up on defending their patents." Still, with such a high success rate, it's worth the expense. To date, Unified has overseen and managed 43 challenges. Of these, 12 patents were found invalid, another 23 cases have been instituted, and six are still in process. This has led to multiple settlements for Unified Patents members. These, in turn directly pass through to OIN's 3,600+ community members. For example, an Accelerated Memory Tech patent 6,513,062, was used by the troll IP Investments Group to claim that the open-source Redis, which manages cache resources on the cloud, violated the patent. Redis, not having any money, IP Investments Group instead went after Hulu, Citrix Systems, Barracuda Networks, Kemp Technologies, and F5 Networks for their use of Redis software. IP Investments Group gave up rather than fighting it out. Everyone who uses Redis wins. It's one small victory, but that's how the patent troll wars are won. And, with the United Patents' high-success rate in knocking out bad patents, slowly but surely the patent trolls are being driven back from not only open-source software but all software. ' -- source: https://yro.slashdot.org/story/22/03/07/235211 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linux Has Been Bitten By Its Most High-Severity Vulnerability in Years
by Peter Reutemann 09 Mar '22

09 Mar '22

'Ars Technica is reporting a major new vulnerability in Linux. Named "Dirty Pipeline" it involves abuse of 'pipes' at the shell level as you might guess. The name Dirty Pipe is meant to both signal similarities to Dirty Cow and provide clues about the new vulnerability's origins. "Pipe" refers to a pipeline, a Linux mechanism for one OS process to send data to another process. In essence, a pipeline is two or more processes that are chained together so that the output text of one process (stdout) is passed directly as input (stdin) to the next one. Tracked as CVE-2022-0847, the vulnerability came to light when a researcher for website builder CM4all was troubleshooting a series of corrupted files that kept appearing on a customer's Linux machine. After months of analysis, the researcher finally found that the customer's corrupted files were the result of a bug in the Linux kernel. ' -- source: https://it.slashdot.org/story/22/03/08/1524203 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The Free Software Foundation Appoints a New Executive Director
by Peter Reutemann 06 Mar '22

06 Mar '22

'The Free Software Foundation announced its new executive director this week. Back in 2010 John Sullivan had become the Free Software Foundation's previous executive director, but last year after more than 11 years he'd decided to resign. Taking his place will be the FSF's program manager for the last three years, who writes in a new blog post: The past three years working at the FSF as program manager have been educational and motivational. They have reinforced my belief that what we do is important, and that our goal to give the four freedoms to all computer users continues to be crucial. The work we do reminds people to recognize the power they have to demand change. This change will help free their own digital lives, and their loved ones'. I am grateful to John Sullivan for his leadership and support. His legacy of nineteen years will be hard to live up to, and I look forward to working with him, the FSF board, and the staff on this transition.... We will continue our unwavering focus on our mission, especially working to increase understanding and adoption of copyleft, and bringing new people into the movement by communicating the necessity of the four freedoms. In the short term, we're focused on making the upcoming LibrePlanet conference [March 19-20] the best online edition yet for you. After that, I plan to reach out and ask for your thoughts and ideas on what else the FSF can do this year and beyond to advance the cause of user freedom. As a free software activist, like many of you, each day, I am presented with almost innumerable choices between freedom and convenience, and each day I choose freedom wherever I can. I have learned to do this by questioning my tools, by joining this community, and by learning more and more about the ways that I can stand up for myself. If I can do that, I firmly believe we can reach anyone. I hope that you'll join me in rejecting the ways that Big Tech tries to deprive us of our freedoms, and to help set a positive example for computer users around the globe. In freedom, Zoë Kooyman Executive Director >From the FSF's announcement: Kooyman assumes the executive director role following a series of recent steps taken to make the non-profit's governance and board recruitment practices more transparent and participatory, including a new community engagement process that empowers associate members of the FSF to nominate and evaluate candidates for the board of directors for the first time in the organization's 37-year history. "I want to learn from the community, and will focus on relationship building, and on strengthening the free software movement together," Kooyman said. "Our immediate priority is to convene another successful LibrePlanet conference on March 19 and 20, bringing community activists, domain experts, and other users together to discuss current issues in technology and ethics. With the current and future threats users face, it's critical that we spread the free software message wider than ever before and that we help people understand the steps they can take to defend our user rights and freedom."' -- source: https://news.slashdot.org/story/22/03/05/0550228 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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On Raspberry Pi's 10th Anniversary, Eben Upton Ponders the Prospects for a RISC-V Pi
by Peter Reutemann 06 Mar '22

06 Mar '22

'On the 10th anniversary of the Raspberry Pi, the Register takes a look backwards — and forwards — in a new interview Eben Upton: As for the future, a Raspberry Pi 5 is inevitable but, in a blow to those hoping for something even more exotic than the usual Broadcom Arm SoC, RISC-V isn't on the cards, certainly not in the timeframe for the next generation of Pi. "I can't go out today and license a RISC-V core," says Upton, citing the current state of the ecosystem, "which is even as good as the core of the Raspberry Pi 4." "Hopefully I will in the future," he adds. The implosion of the Nvidia/Arm deal has also reduced the chances of a RISC-V Pi (in the 2030 timeframe), down from 20 per cent to 10 per cent, according to Upton. "The ownership of the core of the de-facto standard low-power architecture by an organisation that's also a player was potentially very destabilising... and it was always going to be to the benefit of the obvious alternative architecture." Upton answered questions from Slashdot's readers before the first boards were even ready in 2012. But he already knew that the device would be wildly popular. Upton tells the Register that months before, its Debian-based operating system got 50,000 downloads, "And all you could do was run it in QEMU (there was a QEMU config you could build that was similar enough to a Raspberry Pi). "50,000 people downloaded this really primitive operating system for a machine that you couldn't buy!"' -- source: https://news.slashdot.org/story/22/03/05/0151232 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linux Foundation's 'Census II' of Open Source Libraries Urges Support, Security, and Standardization
by Peter Reutemann 06 Mar '22

06 Mar '22

'"Much of the most widely used free and open source software is developed by only a handful of contributors," warns the Linux Foundation, in the executive summary for its massive new census of free and open source software application libraries. It was prepared in conjunction with Harvard's Laboratory for Innovation Science — and that's just one of its five high-level findings. The census also notes "the increasing importance of individual developer account security," but also the persistence of legacy software, the need for a standardized naming schema for software components, and "complexities" around package versions. But there's also just a lot of data about package popularity, writes SD Times: The report, Census II, is a follow-up to Census I, which was conducted in 2015 to identify the packages in Debian Linux that were most critical to the operation and security of the kernel. According to the Linux Foundation, Census II allows for a more "complete picture of free and open source (FOSS) adoption." "Understanding what FOSS packages are the most critical to society allows us to proactively support projects that warrant operations and security support," said Brian Behlendorf, executive director at Linux Foundation's Open Source Security Foundation (OpenSSF). The census "aggregates data from over half a million observations of FOSS libraries used in production applications at thousands of companies," according to its executive summary. It argues that preserving FOSS will require this kind of data-sharing (about where and how FOSS packages are being used ) as well as coordination — including standardizing terminology — and of course, investment. "The motivation behind publishing these findings is to not only inform, but also to inspire action by developers to improve their security practices and by end users to support the FOSS ecosystem and developers who need assistance." (It suggests companies companies could provide not just financial support but also the technical talent and their time.) The results take the form of eight Top 500 lists — four that include version numbers in the analysis and four that are version agnostic. Further, as mentioned above, we present npm and non-npm packages in separate lists... Although these lists provide valuable, important insights into the most widely used FOSS projects, it is important to also consider the level of security related to these projects. Therefore, in each list, we also include the "Tiered %" measure from the OpenSSF Best Practices Badging Program....' -- source: https://news.slashdot.org/story/22/03/05/0521219 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Bungie Rejects Steam Deck's Linux, Threatens To Ban Destiny 2 Players There
by Peter Reutemann 04 Mar '22

04 Mar '22

'The Verge: When will Bungie let Destiny 2 come to Valve's Steam Deck handheld gaming PC? It's looking like the answer is never -- because the soon-to-be Sony subsidiary has published a help page that not only says the game's unsupported, but outright threatens to ban prospective Steam Deck players (via Wario64). The help page has a new section titled "Steam Deck and Destiny 2," which reads: "Destiny 2 is not supported for play on the Steam Deck or on any system utilizing Steam Play's Proton unless Windows is installed and running. Players who attempt to launch Destiny 2 on the Steam Deck through SteamOS or Proton will be unable to enter the game and will be returned to their game library after a short time. Players who attempt to bypass Destiny 2 incompatibility will be met with a game ban." To be fair, Bungie isn't the only one to reject the Steam Deck without necessarily providing a satisfying explanation -- Epic Games CEO Tim Sweeney explained to me why Fortnite won't get updated for the Steam Deck last month, even though Epic's own Easy Anti-Cheat (EAC) claims game developers can enable it with "just a few clicks." And while both Apex Legends and Elden Ring now fully work on Deck despite using anti-cheat, it's also true that many other top multiplayer games have yet to fully arrive.' -- source: https://linux.slashdot.org/story/22/03/02/2153252 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Google Play app downloaded more than 10,000 times contained data-stealing RAT
by Peter Reutemann 03 Mar '22

03 Mar '22

'A malicious app downloaded from Google Play more than 10,000 times surreptitiously installed a remote access trojan that stole users’ passwords, text messages, and other confidential data, a security firm reported. The trojan, which goes under the names TeaBot and Anatsa, came to light last May. It used streaming software and abused Android’s accessibility services in a way that allowed the malware creators to remotely view the screens of infected devices and interact with the operations the devices carried out. At the time, TeaBot was programmed to steal data from a predefined list of apps from about 60 banks around the world. On Tuesday, security firm Cleafy reported that TeaBot was back. This time, the trojan spread through a malicious app called QR Code & Barcode Scanner, which as the name suggested, allowed users to interact with QR codes and barcodes. The app had more than 10,000 installations before Cleafy researchers notified Google of the fraudulent activity and Google removed it.' -- source: https://arstechnica.com/information-technology/2022/03/google-play-app-drop… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Hackers Demand NVIDIA Open Source Their Drivers Or They Leak More Data
by Peter Reutemann 03 Mar '22

03 Mar '22

'VideoCardz: Hackers that infiltrated NVIDIA systems are now threatening to release more confidential information unless the company commits to open sourcing their drivers. It is unclear what the stolen data contains, but the group confirmed that there are 250GB of hardware related data in their possession. Furthermore, the group confirmed they have evaluated NVIDIA position, which means that NVIDIA is might trying to communicate with the group to prevent future leaks. The group has already published information on NVIDIA DLSS technology and upcoming architectures. Yesterday, Nvidia reportedly retaliated against the hacker group known as "Lapsus$" by sneaking back into the hacker's system and encrypting the stolen data. The group claimed that it had a backup of the data, though.' -- source: https://news.slashdot.org/story/22/03/02/2228207 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Fixing The Fiji-Tonga Cable
by Lawrence D'Oliveiro 02 Mar '22

02 Mar '22

Reconnecting Tonga’s sole Internet cable link (to Fiji) turned out to be a tricky job <https://www.theregister.com/2022/03/02/tonga_submarine_cable_reconnection_r…>. The cable was ripped in six different places, and a quarter-million-dollar repeater unit went missing altogether. 40km of existing cable was able to be recovered and reused, but another 50km of new cable was needed to complete the repair. Parts of the cable actually moved 5km closer to the volcano, courtesy of an earthquake and associated turbidity currents. Next step: fixing the connections between Tonga’s islands.

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DDoSers are using a potent new method to deliver attacks of unthinkable size
by Peter Reutemann 02 Mar '22

02 Mar '22

'Last August, academic researchers discovered a potent new method for knocking sites offline: a fleet of misconfigured servers more than 100,000 strong that can amplify floods of junk data to once-unthinkable sizes. These attacks, in many cases, could result in an infinite routing loop that causes a self-perpetuating flood of traffic. Now, content-delivery network Akamai says attackers are exploiting the servers to target sites in the banking, travel, gaming, media, and web-hosting industries. These servers—known as middleboxes—are deployed by nation-states such as China to censor restricted content and by large organizations to block sites pushing porn, gambling, and pirated downloads. The servers fail to follow transmission control protocol specifications that require a three-way handshake—comprising an SYN packet sent by the client, a SYN+ACK response from the server, followed by a confirmation ACK packet from the client—before a connection is established. This handshake limits the TCP-based app from being abused as amplifiers because the ACK confirmation must come from the gaming company or other target rather than an attacker spoofing the target’s IP address. But given the need to handle asymmetric routing, in which the middlebox can monitor packets delivered from the client but not the final destination that’s being censored or blocked, many such servers drop the requirement by design.' -- source: https://arstechnica.com/information-technology/2022/03/unending-data-floods… Considering that we suffered a widespread internet outage earlier today (and my internet is still flaky or slow), seems rather relevant: https://www.newshub.co.nz/home/technology/2021/09/internet-down-for-many-ar… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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meeting next Monday
by Peter Reutemann 28 Feb '22

28 Feb '22

Hi everyone We have a (virtual) meeting scheduled for next Monday: Peter Reutemann will demo openbalena (https://www.balena.io/open/) and how it can be used for managing an IoT fleet of devices. Ian Stewart will present his modem running the latest version of OpenWrt ( https://openwrt.org/ ). Using ssh into his modem and what the web-based user interface looks like, we will see some of the improvements that have gone into this latest release. Details: https://www.meetup.com/WaikatoLinuxUsersGroup/events/283776605/ Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Australia’s Standoff Against Google And Facebook Worked--Sort Of
by Lawrence D'Oliveiro 28 Feb '22

28 Feb '22

Analysis of how Australia forced Google and Facebook to negotiate with news outlets over compensation for carrying their stories <https://arstechnica.com/tech-policy/2022/02/australias-standoff-against-goo…>. Other countries (most famously Spain) had previously tried something similar, only to have it backfire spectacularly. Australia has succeeded where others failed—up to a point. Seems the two online behemoths are paying off some bigger news outlets, but rebuffing attempts from others to come to a similar deal. While the country’s news media bargaining code is now law, it has not (yet) actually needed enforcement: all the deals so far have been voluntary. So, has it been beneficial for Australian media as a whole, or only for certain favoured players? But even critics of the code suggest it could be a useful starting point. Emily Bell, director of Columbia University’s Tow Center for Digital Journalism, says she is concerned by the code’s lack of transparency, but concedes that Facebook and Google have paid more to publishers in Australia than they do under their philanthropic donations elsewhere. “What we do know is that some legislation is better than none.”

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Samsung Shattered Encryption On 100 Million Phones
by Peter Reutemann 25 Feb '22

25 Feb '22

'Samsung shipped an estimated 100 million smartphones with botched encryption, including models ranging from the 2017 Galaxy S8 on up to last year's Galaxy S21. Threatpost reports: Researchers at Tel Aviv University found what they called "severe" cryptographic design flaws that could have let attackers siphon the devices' hardware-based cryptographic keys: keys that unlock the treasure trove of security-critical data that's found in smartphones. What's more, cyber attackers could even exploit Samsung's cryptographic missteps -- since addressed in multiple CVEs -- to downgrade a device's security protocols. That would set up a phone to be vulnerable to future attacks: a practice known as IV (initialization vector) reuse attacks. IV reuse attacks screw with the encryption randomization that ensures that even if multiple messages with identical plaintext are encrypted, the generated corresponding ciphertexts will each be distinct. The design flaws primarily affect devices that use ARM's TrustZone technology: the hardware support provided by ARM-based Android smartphones (which are the majority) for a Trusted Execution Environment (TEE) to implement security-sensitive functions. TrustZone splits a phone into two portions, known as the Normal world (for running regular tasks, such as the Android OS) and the Secure world, which handles the security subsystem and where all sensitive resources reside. The Secure world is only accessible to trusted applications used for security-sensitive functions, including encryption. Matthew Green, associate professor of computer science at the Johns Hopkins Information Security Institute, explained on Twitter that Samsung incorporated "serious flaws" in the way its phones encrypt key material in TrustZone, calling it "embarrassingly bad." "They used a single key and allowed IV re-use," Green said. "So they could have derived a different key-wrapping key for each key they protect," he continued. "But instead Samsung basically doesn't. Then they allow the app-layer code to pick encryption IVs." The design decision allows for "trivial decryption," he said. Samsung responded to the academics' disclosure by issuing a patch for affected devices that addressed CVE-2021-25444: an IV reuse vulnerability in the Keymaster Trusted Application (TA) that runs in the TrustZone. Keymaster TA carries out cryptographic operations in the Secure world via hardware, including a cryptographic engine. The Keymaster TA uses blobs, which are keys "wrapped" (encrypted) via AES-GCM. The vulnerability allowed for decryption of custom key blobs. Then, in July 2021, the researchers revealed a downgrade attack -- one that lets attacker trigger IV reuse vulnerability with privileged process. Samsung issued another patch -- to address CVE-2021-25490 -- that remoged the legacy blob implementation from devices including Samsung's Galaxy S10, S20 and S21 phones. ' -- source: https://mobile.slashdot.org/story/22/02/24/222207 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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FreeDOS Puts Out New Release
by Peter Reutemann 25 Feb '22

25 Feb '22

'FreeDOS has put out release 1.3, the latest release in 6-years. Some of the improvements since the 1.2 release, include: new FreeCOM 0.85a, new Kernel 2043 and an 8086 version with FAT32 support, floppy edition now uses compression...let's party like it's 1994.' -- source: https://tech.slashdot.org/story/22/02/24/1540240 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Russia’s most cutthroat hackers infect network devices with new botnet malware
by Peter Reutemann 24 Feb '22

24 Feb '22

'Hackers for one of Russia’s most elite and brazen spy agencies have infected home and small-office network devices around the world with a previously unseen malware that turns them into attack platforms that can steal confidential data and target other networks. Cyclops Blink, as the advanced malware has been dubbed, has infected about 1 percent of network firewall devices made by network device manufacturer Watchguard, the company said on Wednesday. The malware is able to abuse a legitimate firmware update mechanism found in infected devices in a way that gives it persistence, meaning it survives reboots. [...] So far, the advisory stated, Sandworm has “primarily” used the malware to infect network devices from WatchGuard, but it’s likely the hackers are able to compile it to run on other platforms as well. The malware gains persistence on WatchGuard devices by abusing the legitimate process they use to receive firmware updates.' -- source: https://arstechnica.com/information-technology/2022/02/russias-most-cut-thr… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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ReiserFS Proposed To Be Removed From Linux In 2022
by Peter Reutemann 24 Feb '22

24 Feb '22

'Linux kernel developers have discussed on the kernel developers forum to remove ReiserFS from the kernel starting in 2022. ReiserFS was added as Linux's first journaling file system 21 years ago with SUSE using it as the default filesystem until 2006. However, since Hans Reiser was sent to jail 15 years ago for murder, there has not been much development or interest in it. Noting that there have been no user-spotted fixes since 2019, longtime kernel developer Matthew Wilcox also cited that ReiserFS was only block for some kernel changes he wished to implement. These days there are better alternatives like EXT4, Btrfs, XFS, and OpenZFS.' -- source: https://linux.slashdot.org/story/22/02/23/0537213 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 (office) +64 (7) 577-5304 (home office) https://www.cs.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Fwd: [Flounder] new list and updated web site, next meeting 5th March
by Peter Reutemann 22 Feb '22

22 Feb '22

This new list FLOSS Down Under - Internet-Meeting group for Free Software people may be of interest to some of the people on this list as well. Cheers, Peter ---------- Forwarded message --------- From: Russell Coker via Flounder <flounder(a)lists.linux.org.au> Date: Tue, Feb 22, 2022 at 5:08 PM Subject: [Flounder] new list and updated web site, next meeting 5th March To: <flounder(a)lists.linux.org.au> https://flounder.linux.org.au/ Above is the new URL for the web site. It has a link for an iCal file with future meetings. I will add meetings without agenda many months ahead of time and then replace them with proper events when we have an agenda. This is the new list, I subscribed some people who are interested (hope everyone wanted that). Please forward to your friends! -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/ _______________________________________________ Flounder mailing list Flounder(a)lists.linux.org.au http://lists.linux.org.au/mailman/listinfo/flounder -- My Open Source Blog - http://open.fracpete.org

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Tip Of The Week: Controlling The Battery Charge Threshold
by Lawrence D'Oliveiro 21 Feb '22

21 Feb '22

Came across this rather interesting reader comment <https://forums.theregister.com/forum/all/2022/02/18/something_for_the_weeke…> about (supposedly) prolonging the life of your laptop battery by reducing the limit to which it is charged. This is configured by creating a systemd service file (called, for example, /etc/systemd/system/battery-charge-threshold.service) that automatically sets the threshold at boot time. Its contents are [Unit] Description=Set the battery charge threshold After=multi-user.target StartLimitBurst=0 [Service] Type=oneshot Restart=on-failure ExecStart=/bin/bash -c 'echo 50 > /sys/class/power_supply/BAT0/charge_control_end_threshold' [Install] WantedBy=multi-user.target You then use the usual “systemctl start” command to invoke this immediately, plus “systemctl enable” to ensure it runs at every subsequent boot. Regardless of whether it actually prolongs the life of your battery (try at your own risk!), it shows how easy it is to customize aspects of your system behaviour with systemd. As of this writing, that comment has garnered 7 upvotes and no downvotes, on a site where the readers are notorious for being a nest of systemd-haters.

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