- wlug - list.wlug.org.nz

Free, Secure, and Open-Source: How FileZilla is Making an Old School Protocol Cool Again
by Peter Reutemann 21 Aug '22

21 Aug '22

'It's a free and open-source, cross-platform FTP application that allows secure file transfering — and it's making an old-school protocol cool again, according to a recent blog post. Started about 21 years ago — and downloaded by millions each year — FileZilla remains "committed to their role in liberating technology, by making it accessible, open and also secure," according to the blog post. But it also explains how FileZilla has beefed up that security through a collaboration with the internet freedom nonprofit, the Open Technology Fund (or "OTF"): Over the past year, FileZilla has utilised support from OTF to undertake two activities that enhanced and ensured the security of their tools. The first was integrating FileZilla Server with Let's Encrypt, a free, automated, and open source certificate authority that ensures secure communication between the two end-points sending or receiving a file via FileZilla.... Secondly, FileZilla ran a penetration test, a service offered by OTF's Red Team Lab. A team of independent researchers attempted to force access to the FileZilla server to see if they could gain control. These researchers were highly skilled, and the testing was extensive. The team conducting the test only found very minor security vulnerabilities that FileZilla were able to fix immediately. As a result of this process, anyone wanting to use the FileZilla software can trust that it has been cross-scrutinised by a third party and found to be secure.... FileZilla respects users' confidentiality: they do not track your behaviour, nor sell your data to other companies. While they do have advertisements on their website, they are posted exactly as advertisements would be posted in a newspaper. Nobody knows that you are reading the advertisements, or that you decided to call or connect to the advertised website. The advertisement has simply been attached to the webpage, without any underlying tracking.... . "Our mission hasn't changed in over 20 years: design, develop, maintain and enhance free tools to securely transfer files with ease and reliability," said Tim Kosse, FileZilla Lead Developer. This decision was a political one taken by FileZilla, to always preserve the freedom of their tools, and of their users. "We aren't the typical commercial open-source venture that starts doing things for free, and over time, closes this and that to make money" said Roberto Galoppini, FileZilla Director of Strategy. "While you might not see FileZilla listed at the NYSE [New York Stock Exchange] any time soon, the freedom of our tools will never be questioned...." [I]f you work in an industry that requires the secure transfer of sensitive files, or if you simply have personal photographs or videos you want to keep confidential, using proprietary platforms to share or store them can put your information at risk of being exposed.... FileZilla offers an alternative that is secure and private. Their tools are developed by a team that is deeply invested in protecting users' confidentiality, and liberating technology is central to their work and decision-making.... At the same time, projects like FileZilla remind us that there exists a global community of technologists, activists, coders, bloggers, journalists, software developers, and mindful internet users making internet freedom a lived reality and daily practice. Supporting, experimenting with and using free and open source tools, such as the FileZilla client and server, enables us to disinvest from the capitalist pursuit of corporate control of technology and unchecked surveillance of our data. Rather, we can step into alignment with an alternative, parallel narrative being created by a community of resistance that is grounded in principles of cooperation, solidarity, commons and openness.' -- source: https://news.slashdot.org/story/22/08/20/2031207 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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eternal terminal
by Peter Reutemann 18 Aug '22

18 Aug '22

Hi everyone Facing recurring ssh connection interruptions with long running processes, my go-to solution is to use "screen" on the remote server. But that doesn't get around the problem of my ssh sessions being defunct or closed ("broken pipe"). Doing a quick internet search, I've just come across "eternal terminal": "Eternal Terminal (ET) is a remote shell that automatically reconnects without interrupting the session. " https://eternalterminal.dev/ https://github.com/MisterTea/EternalTerminal Does anybody have any experience with it? 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 could go 64-bit only in 2023, starting with the Pixel tablet
by Peter Reutemann 18 Aug '22

18 Aug '22

'Android 13 hit AOSP the other day, and included in the code source dump is an interesting commit spotted by Esper's Mishaal Rahman. It sounds like Google is planning to—or at least experimenting with—moving the upcoming Pixel tablet to a 64-bit-only build of Android. The commit doesn't beat around the bush, saying: "Move tangor to 64-bit only." "Tangor" is the codename for the already-announced Pixel tablet. iOS, with its single hardware manufacturer, has been 64-bit only since 2017. Android has a million moving parts split across a bunch of different companies, so getting to 64-bit only is going to be a long road. Getting there is worth the effort, though, with a promise of increased performance and additional security features. The Google Play app ecosystem is probably furthest along in supporting 64 bit. Any apps written entirely in Java or Kotlin already get automatic 64-bit compatibility from the system. Google mandated that Google Play apps using native code (usually these are games) needed to provide 64-bit versions back in 2019. There were exceptions for a few popular SDKs like Adobe Air and Unity, but these exceptions were ended in August 2021, when all apps were required to have 64-bit versions. As for hardware, every SoC should support 64-bit by now, and some flagship Android SoCs are actually reducing their ability to run 32-bit code. Any flagship chip following the recommended ARM design only supports 32-bit processing on three of the eight cores—the other five are 64-bit only. ARM wants to drop 32-bit support entirely from its 2023 flagship SoC design, but there are already rumors stating that Qualcomm doesn't want to follow that recommended design. The most likely reason is because of China. Google's 64-bit app requirements apply only to apps in Google Play, which doesn't exist in China. China has a big collection of competing app stores with more lax policies, so 32-bit apps have not been phased out as aggressively. China is working on this issue, though, with the top-five Chinese app stores—from Alibaba, Baidu, OPPO, Tencent, and Xiaomi—agreeing to ban 32-bit-only apps by the end of this month. There's also the issue of 64-bit compatibility among packed-in apps from OEM skins, which app store rules don't apply to. Rahman found another commit that suggests 64-bit-only support might be a regular feature of 2023's Android 14, so the Pixel tablet, which is already officially confirmed for next year, is looking like a test run to see how everything goes.' -- source: https://arstechnica.com/gadgets/2022/08/google-might-give-the-pixel-tablet-… 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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Update Chrome now to patch actively exploited zero-day
by Peter Reutemann 18 Aug '22

18 Aug '22

'Google announced an update on Wednesday to the Stable channel of its Chrome browser that includes a fix for an exploit that exists in the wild. CVE-2022-2856 is a fix for "insufficient validation of untrusted input in Intents," according to Google's advisory. Intents are typically a way to pass data from inside Chrome to another application, such as the share button on Chrome's address bar. As noted by the Dark Reading blog, input validation is a common weakness in code. The exploit was reported by Ashley Shen and Christian Resell of the Google Threat Analysis Group, and that's all the information we have for now. Details of the exploit are currently tucked behind a wall in the Chromium bugs group and are restricted to those actively working on related components and registered with Chromium. After a certain percentage of users have applied the relevant updates, those details may be revealed. Google says the update—104.0.5112.101 for Mac and Linux and 104.0.5112.102/101 for Windows—will "roll out over the coming days/weeks," but you can (and should) manually update Chrome now (check the "About" section of your settings). There are 10 other security fixes included in the update. Dark Reading notes that this is Chrome's fifth zero-day vulnerability disclosed in 2022.' -- source: https://arstechnica.com/information-technology/2022/08/update-chrome-now-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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VLC-Developer VideoLan Says India Blocking Site Endangers Its Own Citizens
by Peter Reutemann 17 Aug '22

17 Aug '22

'VideoLan, the developer of popular media player VLC, says Indian telecom operators have been blocking its website since February of this year in a move that is potentially impacting some users in one of the open source firm's largest markets. From a report: "Most major ISPs [internet service providers] are banning the site, with diverse techniques," VideoLan president and lead developer Jean-Baptiste Kempf said of the blocking in India, in an email to TechCrunch. India represents 10% of all VLC users worldwide, he said. The website's traffic has seen an overall drop of 20% as a result of the blocking in India. [...] VLC, downloaded over 3.5 billion times worldwide, is a local media player that doesn't require internet access or connection to any particular service online for the vast majority of its features. But by blocking the website, India is pushing its citizens to "shady websites that are running hacked version of VLC. So they are endangering their own citizens with this ban," Kempf added.' -- source: https://developers.slashdot.org/story/22/08/16/146257 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 Releases Android 13, Rolling Out First To Pixel Phones
by Peter Reutemann 16 Aug '22

16 Aug '22

'This year's major Android update, Android 13, is officially releasing today for Googleâ(TM)s Pixel phones, the search giant has announced. >From a report: The annual update is getting an official release a little earlier than usual, following Android 12's release last October and Android 11's release in September 2020. The list of updates arriving with this year's version of Android is likely to be familiar if you've been keeping up with Android 13's beta releases. There's the ability to customize non-Google app icons to match your homescreen wallpaper that we saw in Android 13's first developer preview, a new permission to cut down on notification spam, and a new option to limit which of your photos and videos an app can access. Back in January, we wrote that Google planned to spend this year catching up with Apple's ecosystem integrations, and there's more evidence of this in Android 13's official release. The update includes support for spatial audio with head tracking, which is designed to make sounds appear as though they're coming from a fixed point in space when you move your head while wearing compatible headphones, similar to a feature Apple offers for its AirPods. Today's post doesn't say exactly which headphones this will work with, but Google previously announced it would be updating its Pixel Buds Pro to offer support for spatial audio. Secondly, there's the ability to stream messages from apps including Google Messages directly to a Chromebook, similar to iMessage on the Mac.' -- source: https://tech.slashdot.org/story/22/08/15/1747228 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 6.0 Arrives With Performance Improvements and More Rust Coming
by Peter Reutemann 16 Aug '22

16 Aug '22

'Linux creator Linus Torvalds has announced the first release candidate for the Linux kernel version 6.0, but he says the major number change doesn't signify anything especially different about this release. ZDNet: While there is nothing fundamentally different about this release compared with 5.19, Torvalds noted that there were over 13,500 non-merge commits and over 800 merged commits, meaning "6.0 looks to be another fairly sizable release." According to Torvalds, most of the updates are improvements to the GPU, networking and sound. Torvalds stuck to his word after releasing Linux kernel 5.19 last month, when he flagged he would likely call the next release 6.0 because he's "starting to worry about getting confused by big numbers again." On Sunday's release of Linux 6.0 release candidate version 1 (rc-1), he explained his reasoning behind choosing a new major version number and its purpose for developers. Again, it's about avoiding confusion rather than signaling that the release has major new features. His threshold for changing the lead version number was .20 because it is difficult to remember incremental version numbers beyond that. "Despite the major number change, there's nothing fundamentally different about this release - I've long eschewed the notion that major numbers are meaningful, and the only reason for a 'hierarchical; numbering system is to make the numbers easier to remember and distinguish," said Torvalds. Torvalds lamented some Rust-enabling code didn't make it into the release. The Register adds: "I actually was hoping that we'd get some of the first rust infrastructure, and the multi-gen LRU VM, but neither of them happened this time around," he mused, before observing "There's always more releases. This is one of those releases where you should not look at the diffstat too closely, because more than half of it is yet another AMD GPU register dump," he added, noting that Intel's Gaudi2 Ai processors are also likely to produce plenty of similar kernel additions. "The CPU people also show up in the JSON files that describe the perf events, but they look absolutely tiny compared to the 'asic_reg' auto-generated GPU and AI hardware definitions," he added.' -- source: https://linux.slashdot.org/story/22/08/15/199255 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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NetBSD 9.3: A 2022 OS That Can Run On Late-1980s Hardware
by Peter Reutemann 14 Aug '22

14 Aug '22

'Version 9.3 of NetBSD is here, able to run on very low-end systems and with that authentic early-1990s experience. The Register reports: Version 9.3 comes some 15 months after NetBSD 9.2 and boasts new and updated drivers, improved hardware support, including for some recent AMD and Intel processors, and better handling of suspend and resume. The next sentence in the release announcement, though, might give some readers pause: "Support for wsfb-based X11 servers on the Commodore Amiga." This is your clue that we are in a rather different territory from run-of-the-mill PC operating systems here. A notable improvement in NetBSD 9.3 is being able to run a graphical desktop on an Amiga. This is a 2022 operating system that can run on late-1980s hardware, and there are not many of those around. NetBSD supports eight "tier I" architectures: 32-bit and 64-bit x86 and Arm, plus MIPS, PowerPC, Sun UltraSPARC, and the Xen hypervisor. Alongside those, there are no less than 49 "tier II" supported architectures, which are not as complete and not everything works -- although almost all of them are on version 9.3 except for the version for original Acorn computers with 32-bit Arm CPUs, which is still only on NetBSD 8.1. There's also a "tier III" for ports which are on "life support" so there may be a risk Archimedes support could drop to that. This is an OS that can run on 680x0 hardware, DEC VAX minicomputers and workstations, and Sun 2, 3, and 32-bit SPARC boxes. In other words, it reaches back as far as some 1970s hardware. Let this govern your expectations. For instance, in VirtualBox, if you tell it you want to create a NetBSD guest, it disables SMP support. ' -- source: https://tech.slashdot.org/story/22/08/12/1958253 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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Microsoft Urges Windows Users To Run Patch For DogWalk Zero-Day Exploit
by Peter Reutemann 14 Aug '22

14 Aug '22

'Computerworld reports: Despite previously claiming the DogWalk vulnerability did not constitute a security issue, Microsoft has now released a patch to stop attackers from actively exploiting the vulnerability. [...] The vulnerability, known as CVE-2022-34713 or DogWalk, allows attackers to exploit a weakness in the Windows Microsoft Support Diagnostic Tool (MSDT). By using social engineering or phishing, attackers can trick users into visiting a fake website or opening a malicious document or file and ultimately gain remote code execution on compromised systems. DogWalk affects all Windows versions under support, including the latest client and server releases, Windows 11 and Windows Server 2022. The vulnerability was first reported in January 2020 but at the time, Microsoft said it didn't consider the exploit to be a security issue. This is the second time in recent months that Microsoft has been forced to change its position on a known exploit, having initially rejected reports that another Windows MSDT zero-day, known as Follina, posed a security threat. A patch for that exploit was released in June's Patch Tuesday update. ' -- source: https://tech.slashdot.org/story/22/08/12/2037213 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's New Bug Bounties Include Their Custom Linux Kernel's Experimental Security Mitigations
by Peter Reutemann 14 Aug '22

14 Aug '22

'Google uses Linux "in almost everything," according to the leader of Google's "product security response" team — including Chromebooks, Android smartphones, and even Google Cloud. "Because of this, we have heavily invested in Linux's security — and today, we're announcing how we're building on those investments and increasing our rewards." In 2020, we launched an open-source Kubernetes-based Capture-the-Flag (CTF) project called, kCTF. The kCTF Vulnerability Rewards Program lets researchers connect to our Google Kubernetes Engine (GKE) instances, and if they can hack it, they get a flag, and are potentially rewarded. All of GKE and its dependencies are in scope, but every flag caught so far has been a container breakout through a Linux kernel vulnerability. We've learned that finding and exploiting heap memory corruption vulnerabilities in the Linux kernel could be made a lot harder. Unfortunately, security mitigations are often hard to quantify, however, we think we've found a way to do so concretely going forward.... First, we are indefinitely extending the increased reward amounts we announced earlier this year, meaning we'll continue to pay $20,000 — $91,337 USD for vulnerabilities on our lab kCTF deployment to reward the important work being done to understand and improve kernel security. This is in addition to our existing patch rewards for proactive security improvements. Second, we're launching new instances with additional rewards to evaluate the latest Linux kernel stable image as well as new experimental mitigations in a custom kernel we've built. Rather than simply learning about the current state of the stable kernels, the new instances will be used to ask the community to help us evaluate the value of both our latest and more experimental security mitigations. Today, we are starting with a set of mitigations we believe will make most of the vulnerabilities (9/10 vulns and 10/13 exploits) we received this past year more difficult to exploit. For new exploits of vulnerabilities submitted which also compromise the latest Linux kernel, we will pay an additional $21,000 USD. For those which compromise our custom Linux kernel with our experimental mitigations, the reward will be another $21,000 USD (if they are clearly bypassing the mitigations we are testing). This brings the total rewards up to a maximum of $133,337 USD. We hope this will allow us to learn more about how hard (or easy) it is to bypass our experimental mitigations..... With the kCTF VRP program, we are building a pipeline to analyze, experiment, measure and build security mitigations to make the Linux kernel as safe as we can with the help of the security community. We hope that, over time, we will be able to make security mitigations that make exploitation of Linux kernel vulnerabilities as hard as possible. "We don't care about vulnerabilities; we care about exploits," Vela told the Register. "We expect the vulnerabilities are there, they will get patched, and that's nice and all. But the whole idea is what do to beyond just patching a couple of vulnerabilities." In total, Google paid out $8.7 million in rewards to almost 700 researchers across its various VPRs last year. "We are just one actor in the whole community that happens to have economic resources, financial resources, but we need the community to help us make the Kernel better," Vela said. "If the community is engaged and helps us validate the mitigations that we have, then, we will continue growing on top of that. But the whole idea is that we need to see where the community wants us to go with this...." [I]t's not always about the cash payout, according to Vela, and different bug hunters have different motivations. Some want money, some want fame and some just want to solve an interesting problem, Vela said. "We are trying to find the right combination to captivate people." ' -- source: https://linux.slashdot.org/story/22/08/13/064239 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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Researchers Find Vulnerability In Software Underlying Discord, Microsoft Teams, and Other Apps
by Peter Reutemann 12 Aug '22

12 Aug '22

'Motherboard reports: A group of security researchers found a series of vulnerabilities in the software underlying popular apps like Discord, Microsoft Teams, Spotify and many others, which are used by tens of millions of people all over the world. At the Black Hat cybersecurity conference in Las Vegas on Thursday, the researchers presented their findings, detailing how they could have hacked people who use Discord, Microsoft Teams, and the chat app Element by exploiting the software underlying all of them: Electron, which is a framework built on the open source Chromium and the cross-platform javascript environment Node JS. In all these cases, the researchers submitted vulnerabilities to Electron to get them fixed, which earned them more than $10,000 in rewards. The bugs were fixed before the researchers published their research. Aaditya Purani, one of the researchers who found these vulnerabilities, said that "regular users should know that the Electron apps are not the same as their day-to-day browsers," meaning they are potentially more vulnerable. In the case of Discord, the bug Purani and his colleagues found only required them to send a malicious link to a video. With Microsoft Teams, the bug they found could be exploited by inviting a victim to a meeting. In both cases, if the targets clicked on these links, hackers would have been able to take control of their computers, Purani explained in the talk. For him, one of the main takeaways of their research is that Electron is risky precisely because users are very likely to click on links shared in Discord or Microsoft Teams.' -- source: https://it.slashdot.org/story/22/08/11/211256 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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Raspberry Pi-Powered Anti-Tracking Tool Checks If You're Being Followed
by Peter Reutemann 12 Aug '22

12 Aug '22

'Matt Edmondson, a hacker and digital forensics expert, built a Raspberry Pi-powered anti-tracking tool that "scans for nearby devices and alerts you if the same phone is detected multiple times within the past 20 minutes," reports Wired. The device, which can be carried around or placed in a car, consists of parts that cost around $200 in total. From the report: The homemade system works by scanning for wireless devices around it and then checking its logs to see whether they also were present within the past 20 minutes. It was designed to be used while people are on the move rather than sitting in, say, a coffee shop, where it would pick up too many false readings. The anti-tracking tool, which can sit inside a shoebox-sized case, is made up of a few components. A Raspberry Pi 3 runs its software, a Wi-Fi card looks for nearby devices, a small waterproof case protects it, and a portable charger powers the system. A touchscreen shows the alerts the device produces. Each alert may be a sign that you are being tailed. The device runs Kismet, which is a wireless network detector, and is able to detect smartphones and tablets around it that are looking for Wi-Fi or Bluetooth connections. The phones we use are constantly looking for wireless networks around them, including networks they've connected to before as well as new networks. Edmondson says Kismet makes a record of the first time it sees a device and then the most recent time it was detected. But to make the anti-tracking system work, he had to write code in Python to create lists of what Kismet detects over time. There are lists for devices spotted in the past five to 10 minutes, 10 to 15 minutes, and 15 to 20 minutes. If a device appears twice, an alert flashes up on the screen. The system can show a phone's MAC address, although this is not much use if it's been randomized. It can also record the names of Wi-Fi networks that devices around it are looking for -- a phone that's trying to connect to a Wi-Fi network called Langley may give some clues about its owner. "If you have a device on you, I should see it," he says. In an example, he showed WIRED that a device was looking for a network called SAMSUNGSMART. To stop the system from detecting your own phone or those of other people traveling with you, it has an "ignore" list. By tapping one of the device's onscreen buttons, it's possible to "ignore everything that it has already seen." Edmondson says that in the future, the device could be modified to send a text alert instead of showing them on the screen. He is also interested in adding the capability to detect tire-pressure monitoring systems that could show recurring nearby vehicles. A GPS unit could also be added so you can see where you were when you were being tracked, he says. [...] Edmondson has no plans to make the device into a commercial product, but he says the design could easily be copied and reused by anyone with some technical knowledge. Many of the parts involved are easy to obtain or may be lying around the homes of people in tech communities. For those interested, Edmondson open-sourced its underlying code and plans to present the research project at the Black Hat security conference in Las Vegas this week.' -- source: https://yro.slashdot.org/story/22/08/11/2143207 Anybody interested in exploring that project and demoing it at our September meeting slot? 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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SGX, Intel's Supposedly Impregnable Data Fortress, Has Been Breached Yet Again
by Peter Reutemann 10 Aug '22

10 Aug '22

'Intel's latest generation of CPUs contains a vulnerability that allows attackers to obtain encryption keys and other confidential information protected by the company's software guard extensions, the advanced feature that acts as a digital vault for security users' most sensitive secrets. From a report: Abbreviated as SGX, the protection is designed to provide a fortress of sorts for the safekeeping of encryption keys and other sensitive data, even when the operating system or a virtual machine running on top is maliciously compromised. SGX works by creating trusted execution environments that protect sensitive code and the data it works with from monitoring or tampering by anything else on the system. SGX is a cornerstone of the security assurances many companies provide to users. Servers used to handle contact discovery for the Signal Messenger, for instance, rely on SGX to ensure the process is anonymous. Signal says running its advanced hashing scheme provides a "general recipe for doing private contact discovery in SGX without leaking any information to parties that have control over the machine, even if they were to attach physical hardware to the memory bus." The example is purely hypothetical. Signal spokesperson Jun Harada wrote in an email: "Intel alerted us to this paper... and we were able to verify that the CPUs that Signal uses are not impacted by the findings of this paper and therefore are not vulnerable to the stated attack." Key to the security and authenticity assurances of SGX is its creation of what are called "enclaves," or blocks of secure memory. Enclave contents are encrypted before they leave the processor and are written in RAM. They are decrypted only after they return. The job of SGX is to safeguard the enclave memory and block access to its contents by anything other than the trusted part of the CPU.' -- source: https://it.slashdot.org/story/22/08/09/1814258 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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NVIDIA Publishes 73k Lines Worth Of 3D Header Files For Fermi Through Ampere GPUs
by Peter Reutemann 10 Aug '22

10 Aug '22

'In addition to NVIDIA being busy working on transitioning to an open-source GPU kernel driver, yesterday they made a rare public open-source documentation contribution... NVIDIA quietly published 73k lines worth of header files to document the 3D classes for their Fermi through current-generation Ampere GPUs. Phoronix's Michael Larabel reports: To NVIDIA's Open-GPU-Docs portal they have posted the 73k lines worth of 3D class header files covering RTX 30 "Ampere" GPUs back through the decade-old GeForce 400/500 "Fermi" graphics processors. These header files define the classes used to program the 3D engine of the GPU, the texture header and texture sampler layout are documented, and other 3D-related programming bits. Having all of these header files will be useful to the open-source Nouveau driver developers to save on their reverse-engineering and guessing/uncertainty over certain bits. NVIDIA's Open GPU Kernel Driver is for only GeForce RTX 20 "Turing" series and newer, so it's great seeing NVIDIA now posting this documentation going back to Fermi which is squarely to help the open-source community / Nouveau. [...] The timing of NVIDIA opening these 3D classes back to Fermi is interesting and potentially tied to SIGGRAPH 2022 happening this week. Those wanting to grab NVIDIA's latest open-source GPU documentation can find it via this GitHub repository. ' -- source: https://news.slashdot.org/story/22/08/09/2225215 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 Phone Carrier That Doesn't Track Your Browsing Or Location
by Peter Reutemann 10 Aug '22

10 Aug '22

'Wired reports: As marketers, data brokers, and tech giants endlessly expand their access to individuals' data and movements across the web, tools like VPNs or cookie blockers can feel increasingly feeble and futile. Short of going totally off the grid forever, there are few options for the average person to meaningfully resist tracking online. Even after coming up with a technical solution last year for how phone carriers could stop automatically collecting users' locations, researchers Barath Raghavan and Paul Schmitt knew it would be challenging to convince telecoms to implement the change. So they decided to be the carrier they wanted to see in the world. The result is a new company, dubbed Invisv, that offers mobile data designed to separate users from specific identifiers so the company can't access or track customers' metadata, location information, or mobile browsing. Launching in beta today for Android, the company's Pretty Good Phone Privacy or PGPP service will replace the mechanism carriers normally use to turn cell phone tower connection data into a trove of information about users' movements. And it will also offer a Relay service that disassociates a user's IP address from their web browsing. PGPP's ability to mask your phone's identity from cell towers comes from a revelation about why cell towers collect the unique identifiers known as IMSI numbers, which can be tracked by both telecoms and other entities that deploy devices known as IMSI catchers, often called stringrays, which mimic a cell tower for surveillance purposes. Raghavan and Schmitt realized that at its core, the only reason carriers need to track IMSI numbers before allowing devices to connect to cell towers for service is so they can run billing checks and confirm that a given SIM card and device are paid up with their carrier. By acting as a carrier themselves, Invisv can implement their PGPP technology that simply generates a "yes" or "no" about whether a device should get service. On the PGPP "Mobile Pro" plan, which costs $90 per month, users get unlimited mobile data in the US and, at launch, unlimited international data in most European Union countries. Users also get 30 random IMSI number changes per month, and the changes can happen automatically (essentially one per day) or on demand whenever the customer wants them. The system is designed to be blinded so neither INVISV nor the cell towers you connect to know which IMSI is yours at any given time. There's also a "Mobile Core" plan for $40 per month that offers eight IMSI number changes per month and 9 GB of high-speed data per month. Both of these plans also include PGPP's Relay service. Similar to Apple's iCloud Private Relay, PGPP's Relay is a method for blocking everyone, from your internet provider or carrier to the websites you visit, from knowing both who you are and what you're looking at online at the same time. Such relays send your browsing data through two way stations that allow you to browse the web like normal while shielding your information from the world. When you navigate to a website, your IP address is visible to the first relay -- in this case, Invisv -- but the information about the page you're trying to load is encrypted. Then the second relay generates and connects an alternate IP address to your request, at which point it is able to decrypt and view the website you're trying to load. The content delivery network Fastly is working with Invisv to provide this second relay. Fastly is also one of the third-party providers for iCloud Private Relay. In this way, each relay knows some of the information about your browsing; the first simply knows that you are using the web, and the second sees the sites you connect to, but not who specifically is browsing there. In addition to being included in the two PGPP data plans, customers can also purchase the Relay service on its own for $5 per month and turn it on while connected to mobile data or Wi-Fi. The carrier is still working to bring its services to Apple's iOS. It's also worth noting that Invisv only offers mobile data; there are no voice calling services.' -- source: https://yro.slashdot.org/story/22/08/08/219258 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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Amazon's Roomba Deal Is Really About Mapping Your Home
by Peter Reutemann 09 Aug '22

09 Aug '22

'Bloomberg: Amazon.com hasn't just bought a maker of robot vacuum cleaners. It's acquired a mapping company. To be more precise: a company that can make maps of your home. The company announced a $1.7 billion deal on Friday for iRobot, the maker of the Roomba vacuum cleaner. And yes, Amazon will make money from selling those gadgets. But the real value resides in those robots' ability to map your house. As ever with Amazon, it's all about the data. A smart home, you see, isn't actually terribly smart. It only knows that your Philips Hue lightbulbs and connected television are in your sitting room because you've told it as much. It certainly doesn't know where exactly the devices are within that room. The more it knows about a given space, the more tightly it can choreograph the way they interact with you. The smart home is clearly a priority for Amazon. Its Echo smart speakers still outsell those from rivals Apple and Google, with an estimated 9.9 million units sold in the three months through March, according to the analysis firm Strategy Analytics. It's complemented that with a $1 billion deal for the video doorbell-maker Ring in 2018, and the wi-fi company Eero a year later. But you still can't readily buy the Astro, Amazon's household robot that was revealed with some fanfare last year, is still only available in limited quantities. That, too, seemed at least partly an effort to map the inside of your property, a task that will now fall to iRobot. The Bedford, Mass.-based company's most recent products include a technology it calls Smart Maps, though customers can opt out of sharing the data. Amazon said in a statement that protecting customer data is "incredibly important." Slightly more terrifying, the maps also represent a wealth of data for marketers. The size of your house is a pretty good proxy for your wealth. A floor covered in toys means you likely have kids. A household without much furniture is a household to which you can try to sell more furniture. This is all useful intel for a company such as Amazon which, you may have noticed, is in the business of selling stuff.' -- source: https://slashdot.org/story/22/08/08/2039234 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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Purism's 'Librem 5 USA' Smartphone Achieves Major New Shipping Milestone
by Peter Reutemann 08 Aug '22

08 Aug '22

'Purism posted an announcement Thursday about their privacy-focused "Librem 5 USA" smartphones. "New orders placed today will ship within our standard 10-business-day window." The Librem 5 USA now joins the Librem Mini and Librem 14 as a post-Just In Time product, one where instead of relying on Just In Time supply chains to manufacture a product just as we need it, we have invested in maintaining much larger inventories so that we can better absorb future supply chain issues that may come our way. For anyone who is new to the product, the Librem 5 USA is our premium phone that shares the same hardware design and features as our mass-produced Librem 5, but with electronics we make in the USA using a separate electronics supply chain that sources from US suppliers whenever possible. This results in a tighter, more secure supply chain for the Librem 5 USA. The Librem 5 USA uses the same PureOS as our other computers and so it runs the same desktop Linux applications you might be used to, just on a small screen. PureOS on the Librem 5 USA demonstrates real convergence, where the device becomes more than just a phone, it becomes a full-featured pocket-sized computer that can act like a desktop when connected to a monitor, keyboard and mouse, or even a laptop (or tablet!) when connected to a laptop docking station. All of your files and all of your software remains the same and follows you where you go. Applications just morph from the smaller screen to the larger screen when docked, just like connecting a external monitor to a laptop. Everyone who has backed the Librem 5 and Librem 5 USA projects hasn't just supported the production of the hardware itself, they have also supported a massive, multi-year software development effort to bring the traditional Linux desktop to a phone form-factor. Projects such as Phosh (the GUI), Phoc (the Compositor), Squeekboard (the Keyboard), Calls (for calling), Chats (for texting and messaging), and libhandy/libadwaita (libraries to make GTK applications adaptive) all required massive investment and many of these projects have already been moved to the GNOME infrastructure to better share our effort with a larger community. We are delighted to see that many other mobile projects have recognized the quality of our efforts and adopted our software into their own projects.... The Librem 5 USA was designed for longevity and because we support right to repair, we also offer a number of spare parts in our shop, including replacement modems so you can make sure you support all the cellular bands in a particular continent, replacement batteries for when you ultimately wear out your existing battery, and plenty of other spare parts that haven't had sufficient demand to post formally on our shop (yet). If you need a spare part that isn't yet on the shop, just ask.' -- source: https://linux.slashdot.org/story/22/08/07/0528255 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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Development Suddenly Resumes on Linux Distro CutefishOS
by Peter Reutemann 08 Aug '22

08 Aug '22

'Last month fans were worried about CuteFish OS, with its domain timing out, emails going unanswered, and a Twitter feed that hadn't posted anything since March. But "now it looks like the original development team behind CuteFishOS is coming back to life," according to this report from The New Stack — with a Reddit user planning a fork now saying that's been put on hold, since "I'd be duplicating work for no reason." Last Sunday — on July 31st — CuteFish's official repository on GitHub was updated with a new announcement in its profile. "Your Favorite CutefishOS are back now!" [sic] It also promised "New website in the works (coming soon)." and pointed to a new URL. You can see the changes happening right before your eyes. That website's domain — OpenFish.org — was registered just ten days ago, on Thursday, July 28th — and it's still a work in progress. On Thursday afternoon it was pointing to a non-English-language page hosted on the Pakistani cloud platform QCloud — but by Thursday night it was showing a testing page for a NGNIX HTTP server running Red Hat Enterprise Linux. And there's now also a new README file in CuteFish's GitHub repository listing five items as "progressing." The first item is "official website preparation," but other items include collating the previous pull requests and issues, "fix the existing problem," and eventually adding new features. The sole contributor to the repository appears to be a Chinese coder going under the name of Biukang. "We are preparing for the restart of CutefishOS," says Biukang's GitHub profile now. But the article still hails last month's discussion of a fork as "a chance to see open source communities mobilizing into action just to fill a perceived void."' -- source: https://linux.slashdot.org/story/22/08/06/0019243 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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DreamWorks Animation To Release Renderer As Open-Source Software
by Peter Reutemann 07 Aug '22

07 Aug '22

'With annual CG confab SIGGRAPH slated to start Monday in Vancouver, DreamWorks Animation announced its intent to release its proprietary renderer, MoonRay, as open-source software later this year. Hollywood Reporter reports: MoonRay has been used on feature films such as How to Train Your Dragon: The Hidden World, Croods: A New Age, The Bad Guys and upcoming Puss in Boots: The Last Wish. MoonRay uses DreamWorks' distributed computation framework, Arras, also to be included in the open-source code base. "We are thrilled to share with the industry over 10 years of innovation and development on MoonRay's vectorized, threaded, parallel, and distributed code base," said Andrew Pearce, DWA's vp of global technology. "The appetite for rendering at scale grows each year, and MoonRay is set to meet that need. We expect to see the code base grow stronger with community involvement as DreamWorks continues to demonstrate our commitment to open source."' -- source: https://news.slashdot.org/story/22/08/05/229228 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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After Backlash, GitLab U-Turns on Deleting Dormant Projects
by Peter Reutemann 07 Aug '22

07 Aug '22

'"GitLab has reversed its decision to automatically delete projects that are inactive for more than a year and belong to its free-tier users," reports the Register. Thursday GitLab tweeted: "We discussed internally what to do with inactive repositories. We reached a decision to move unused repos to object storage. Once implemented, they will still be accessible but take a bit longer to access after a long period of inactivity." But the Register says they've seen internal documents from "well-placed sources" showing that GitLab had originally "hoped the move would save it up to $1 million a year and help make its SaaS business sustainable." And the company had spent a long time preparing for such a move: Documents we have seen gave staff notice of an internal meeting scheduled for August 9. The agenda for the meeting lays out the plan to delete dormant code repositories... Other internal documents seen by The Register mention the possible use of object storage to archive projects but express concerns that doing so would increase GitLab's costs by creating a need for multiple redundant backups. We have also seen internal discussions confirming the automation code to delete inactive projects was completed by the end of July, and was ready to roll out after months of debate and development work. One of our sources told us [Thursday] that it was online pressure, led by The Register's reporting, that forced a dramatic rethink at the GitHub rival. Word of the deletion policy as a money-saving exercise sparked fury on Twitter and Reddit. On GitLab's Twitter feed Thursday, someone raised an interesting point about GitLab's new promise to move inactive repos into object storage. "Wait, does 'inactive' mean repositories that have no new commits? Or only those without new commits AND without read access by cloning / fetching?" And GitLab's CEO/co-founder Sid Sijbrandij replied, "We're not sure yet. Probably all write operations would keep a project active, creating an issue, a merge request, pushing changes to a branch, etc. We might also keep it active as long as people are doing read operations such as cloning, forking, etc." Friday Sijbrandij tweeted this status update: "Archived projects is a user activated state that signals intent. We're not sure yet but very likely the storage type used is orthogonal to that. Our current plan for object storage would keep the repos visible to everyone."' -- source: https://developers.slashdot.org/story/22/08/06/0417218 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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DuckDuckGo Browser's Stricter Privacy Protection Will Also Apply To Microsoft Scripts Now
by Peter Reutemann 06 Aug '22

06 Aug '22

'After a revelation in May that DuckDuckGo's (DDG) privacy-focused web browser allows Microsoft tracking scripts on third-party websites, the company now says it will start blocking those too. From a report: DuckDuckGo's browser had third-party tracker loading protection by default that already blocked scripts embedded on websites from Facebook, Google, and others, but until now Microsoft's scripts from the Bing and LinkedIn domains (but not its third-party cookies) had a pass. A security researcher named Zach Edwards pointed out the exclusion that he apparently uncovered while auditing the browser's privacy claims, and noted it is especially curious because Microsoft is the partner that delivers ads in DDG's search engine (while promising not to use that data to create a monitored profile of users to target ads, instead relying on context to decide which ones it should show). DuckDuckGo CEO Gabe Weinberg said at the time that the reason for it was a search syndication agreement with Microsoft, and that more updates on third-party tracker preventions were coming. A backlash ensued, with some seizing on DuckDuckGo's own words that "tracking is tracking," a phrase the company used against Google's cookie-replacing "privacy sandbox" ad technology. Now Weinberg writes in a blog post, "I've heard from a number of users and understand that we didn't meet their expectations around one of our browser's web tracking protections." DuckDuckGo is vowing to be more transparent about what trackers its browser and extensions are protecting users from, making its tracker blocklists available and offering users more information on how its tracking protections with a new help page.' -- source: https://yro.slashdot.org/story/22/08/05/173203 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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Mint 20: disappearing window decorations (MATE)
by Peter Reutemann 05 Aug '22

05 Aug '22

Hi everyone Since a few weeks, I've been getting these random events where all my window decorations are disappearing and I basically have to restart my X session. This happens under Linux Mint 20, MATE edition. Looking through systemd journals, I noticed core dumps and I ran the following command to just list core dumps: sudo coredumpctl list I noticed that "/usr/bin/marco" (the MATE window manager) was causing some of the crashes. After a bit of duckduckgoing, I came across some posts on the Mint forums that mention a bug in marco 1.24, which apparently got fixed in 1.24.1: https://forums.linuxmint.com/viewtopic.php?t=354845 And I'm running indeed that version of the window manager ("dpkg -l | grep marco"): 1.24.0-1ubuntu1 One suggestion was to switch from "marco+compositing" to "metacity+compositing", which I'm trialing now (Control Center -> Desktop settings -> Windows -> Window manager). Maybe this will help other people experiencing this issue... :-) 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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GitLab Plans To Delete Dormant Projects in Free Accounts
by Peter Reutemann 05 Aug '22

05 Aug '22

'GitLab plans to automatically delete projects if they've been inactive for a year and are owned by users of its free tier, The Register reported Thursday. From the report: The Register has learned that such projects account for up to a quarter of GitLab's hosting costs, and that the auto-deletion of projects could save the cloudy coding collaboration service up to $1 million a year. The policy has therefore been suggested to help GitLab's finances remain sustainable. People with knowledge of the situation, who requested anonymity as they are not authorized to discuss it with the media, told The Register the policy is scheduled to come into force in September 2022. GitLab is aware of the potential for angry opposition to the plan, and will therefore give users weeks or months of warning before deleting their work. A single comment, commit, or new issue posted to a project during a 12-month period will be sufficient to keep the project alive. The Register understands some in the wider GitLab community worry that the policy could see projects disappear before users have the chance to archive code on which they rely. As many open-source projects are widely used, it is feared that the decision could have considerable negative impact.' -- source: https://developers.slashdot.org/story/22/08/04/1919231 Ouch... I have a bunch of projects that haven't been touched for years, as they are plugins to stable APIs (and didn't require any fixes/updates). 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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Raspberry Pi 4 Expands 3D Potential With Vulkan Update
by Peter Reutemann 03 Aug '22

03 Aug '22

'The Raspberry Pi 4 has hit a major graphics milestone, adding support for a more modern Vulkan 3D APIa. Ars Technica reports: Raspberry Pi CEO Eben Upton announced the Pi 4's Vulkan 1.2 conformance on Monday. Support isn't available yet in downloadable Pi-friendly operating systems but should be coming soon. For most people using their Pi as a server, a DIY controller, or a light desktop, Vulkan 1.2 conformance won't be noticeable. Desktop graphics on the standard Raspberry Pi OS are powered by OpenGL, the older graphics API that Vulkan is meant to replace. There is one group that benefits, says Upton: games and other 3D Android applications. Android uses Vulkan as its low-overhead graphics API. As with most Raspberry Pi advancements, there could be unforeseen opportunities unleashed by this seemingly tiny change. Vulkan 1.2 support gives developers the same 3D-graphics interface (if not anywhere near the same power) as 2019 NVIDIA graphics cards, 2020 Intel chips with integrated graphics, and dozens of other devices. With a Vulkan 1.0 driver installed, developer Iago Toral was able in 2020 to get the original Quake trilogy mostly running on a Pi 4, with not-too-shabby frame rates. ' -- source: https://tech.slashdot.org/story/22/08/02/226200 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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New Gmail Attack Bypasses Passwords and 2FA To Read All Email
by Peter Reutemann 03 Aug '22

03 Aug '22

'Forbes: According to cyber security firm Volexity, the threat research team has found the North Korean 'SharpTongue' group, which appears to be part of, or related to, the Kimsuky advanced persistent threat group, deploying malware called SHARPEXT that doesn't need your Gmail login credentials at all. Instead, it "directly inspects and exfiltrates data" from a Gmail account as the victim browses it. This quickly evolving threat, Volexity says it is already on version 3.0 according to the malware's internal versioning, can steal email from both Gmail and AOL webmail accounts, and works across three browsers: Google Chrome, Microsoft Edge, and a South Korean client called Whale. The U.S. Cybersecurity & Infrastructure Security Agency, CISA, reports that Kimsuky has been operating since 2012, and is "most likely tasked by the North Korean regime with a global intelligence gathering mission." While CISA sees Kimsuky most often targeting individuals and organizations in South Korea, Japan, and the U. S., Volexity says that the SharpTongue group has frequently been seen targeting South Korea, the U. S. and Europe. The common denominator between them is that the victims often " work on topics involving North Korea, nuclear issues, weapons systems, and other matters of strategic interest to North Korea." The report says that SHARPEXT differs from previous browser extensions deployed by these hacking espionage groups in that it doesn't attempt to grab login credentials but bypasses the need for these and can grab email data as the user reads it. The good news is that your system needs to be compromised by some means before this malicious extension can be deployed. Unfortunately, we know all too well that system compromise is not as difficult as it should be. Once a system has been compromised by phishing, malware, unpatched vulnerabilities, whatever, the threat actors can install the extension using a malicious VB script that replaces the system preference files. Once that's done and the extension runs quietly in the background, it is tough to detect. The user logs in to their Gmail account from their normal browser on the expected system. The security researchers recommend "enabling and analyzing PowerShell ScriptBlock logging" to detect whether you've been targeted by this attack, reports Forbes. Additionally, they recommend reviewing installed extensions regularly, especially looking for ones you don't recognize or are not available from the Chrome Web Store.' -- source: https://it.slashdot.org/story/22/08/02/2041205 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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