January 2021 - wlug - list.wlug.org.nz

Mandatory WhatsApp Privacy Policy Update Allows User Data To be Shared With Facebook
by Peter Reutemann 07 Jan '21

07 Jan '21

'WhatsApp's latest terms and privacy policy allows the popular messaging app to share a significant amount of user data with Facebook. From a report: WhatsApp users are today receiving an in-app notice informing them about the app's updated terms of service and privacy policy. The notice gives an overview of the main three updates, covering how WhatsApp processes user data, how businesses can use Facebook-hosted services to store and manage their WhatsApp chats, and how WhatsApp will soon partner with Facebook to offer deeper integrations across all of the parent company's products. The changes, which are set to take effect on February 8, 2021, are mandatory and users will not be able to continue using WhatsApp unless they accept the terms.' -- source: https://yro.slashdot.org/story/21/01/06/1358228 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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UK Watchdog Begins Investigating Nvidia's $40 Billion Takeover of Arm
by Peter Reutemann 07 Jan '21

07 Jan '21

'Britain's competition watchdog has launched an investigation into the $40 billion takeover of the UK-based chip designer Arm by the US company Nvidia. From a report: The Competition and Markets Authority (CMA) has called for interested parties to submit views on the contentious deal before the launch of a formal investigation later this year. Arm Holdings, which employs 6,500 staff including 3,000 in the UK, is a global leader in designing chips for smartphones, computers and tablets. California-based Nvidia, a graphics chip specialist, announced its plan to buy the British tech group from Japan's SoftBank in September. SoftBank had acquired Arm for $32 billion in 2016, when the Japanese company took advantage of the fall in value of the pound after the Brexit vote. Arm is based in Cambridge but has operations in a number of UK towns and cities, including Manchester, Belfast and Warwick. Its chief executive, Simon Segars, acknowledged at the time of the Nvidia deal that it could take up to 18 months to win approval from regulators around the world.' -- source: https://news.slashdot.org/story/21/01/06/1945224 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Telegram feature exposes your precise address to hackers
by Peter Reutemann 06 Jan '21

06 Jan '21

'If you’re using an Android device—or in some cases an iPhone—the Telegram messenger app makes it easy for hackers to find your precise location when you enable a feature that allows users who are geographically close to you to connect. The researcher who discovered the disclosure vulnerability and privately reported it to Telegram developers said they have no plans to fix it. The problem stems from a feature called People Nearby. By default, it’s turned off. When users enable it, their geographic distance is shown to other people who have it turned on and are in (or are spoofing) the same geographic region. When People Nearby is used as designed, it’s a useful feature with few if any privacy concerns. After all, a notification that someone is 1 kilometer or 600 meters away still leaves stalkers guessing where, precisely, you are. Independent researcher Ahmed Hassan, however, has shown how the feature can be abused to divulge exactly where you are. Using readily available software and a rooted Android device, he’s able to spoof the location his device reports to Telegram servers. By using just three different locations and measuring the corresponding distance reported by People Nearby, he is able to pinpoint a user’s precise location.' -- source: https://arstechnica.com/information-technology/2021/01/telegram-feature-exp… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Cryptocurrency stealer for Windows, macOS, and Linux went undetected for a year
by Peter Reutemann 06 Jan '21

06 Jan '21

'Soaring cryptocurrency valuations have broken record after record over the past few years, turning people with once-modest holdings into overnight millionaires. One determined ring of criminals has tried to join the party using a wide-ranging operation that for the past 12 months has used a full-fledged marketing campaign to push custom-made malware written from scratch for Windows, macOS, and Linux devices. The operation, which has been active since at least January 2020, has spared no effort in stealing the wallet addresses of unwitting cryptocurrency holders, according to a report published by security firm Intezer. The scheme includes three separate trojanized apps, each of which runs on Windows, macOS, and Linux. It also relies on a network of fake companies, websites, and social media profiles to win the confidence of potential victims. The apps pose as benign software that’s useful to cryptocurrency holders. Hidden inside is a remote access trojan that was written from scratch. Once an app is installed, ElectroRAT—as Intezer has dubbed the backdoor—then allows the crooks behind the operation to log keystrokes, take screenshots, upload, download, and install files, and execute commands on infected machines. In a testament to their stealth, the fake cryptocurrency apps went undetected by all major antivirus products.' -- source: https://arstechnica.com/information-technology/2021/01/cryptocurrency-steal… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Hackers are exploiting a backdoor built into Zyxel devices. Are you patched?
by Peter Reutemann 06 Jan '21

06 Jan '21

'Hackers are attempting to exploit a recently discovered backdoor built into multiple Zyxel device models that hundreds of thousands of individuals and businesses use as VPNs, firewalls, and wireless access points. The backdoor comes in the form of an undocumented user account with full administrative rights that’s hardcoded into the device firmware, a researcher from Netherlands-based security firm Eye Control recently reported. The account, which uses the username zyfwp, can be accessed over either SSH or through a Web interface.' -- source: https://arstechnica.com/information-technology/2021/01/hackers-are-exploiti… Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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Linus Torvalds Rails At Intel For 'Killing' the ECC Industry
by Peter Reutemann 06 Jan '21

06 Jan '21

'The Register: Linux creator Linus Torvalds has accused Intel of preventing widespread use of error-correcting memory and being "instrumental in killing the whole ECC industry with its horribly bad market segmentation." ECC stands for error-correcting code. ECC memory uses additional parity bits to verify that the data read from memory is the same as the data that was written. Without this check, memory is vulnerable to occasional corruption where a bit is flipped spontaneously, for example, by background radiation. Memory can also be attacked using a technique called Rowhammer, where rapid repeated reads of the same memory locations can cause adjacent locations to change their state. ECC memory solves these problems and has been available for over 50 years yet most personal computers do not use it. Cost is a factor but what riles Torvalds is that Intel has made ECC support a feature of its Xeon range, aimed at servers and high-end workstations, and does not support it in other ranges such as the Core series. The topic came up in a discussion about AMD's new Zen 3 Ryzen 9 5000 series processors on the Real World Tech forum site. AMD has semi-official ECC support in most of its processors. "I don't really see AMD's unofficial ECC support being a big deal," said an unwary contributor. "ECC absolutely matters," retorted Torvalds. "Intel has been detrimental to the whole industry and to users because of their bad and misguided policies wrt ECC. Seriously. And if you don't believe me, then just look at multiple generations of rowhammer, where each time Intel and memory manufacturers bleated about how it's going to be fixed next time... And yes, that was -- again -- entirely about the misguided and arse-backwards policy of 'consumers don't need ECC', which made the market for ECC memory go away." The accusation is significant particularly at a time when security issues are high on the agenda. The suggestion is that Intel's marketing decisions have held back adoption of a technology that makes users more secure -- though rowhammer is only one of many potential attack mechanisms -- as well as making PCs more stable. "The arguments against ECC were always complete and utter garbage. Now even the memory manufacturers are starting to do ECC internally because they finally owned up to the fact that they absolutely have to," said Torvalds. Torvalds said that Xeon prices deterred usage. "I used to look at the Xeon CPU's, and I could never really make the math work. The Intel math was basically that you get twice the CPU for five times the price. So for my personal workstations, I ended up using Intel consumer CPU's." Prices, he said, dropped last year "because of Ryzen and Threadripper... but it was a 'too little, much too late' situation." By way of mitigation, he added that "apart from their ECC stance I was perfectly happy with [Intel's] consumer offerings."' -- source: https://linux.slashdot.org/story/21/01/05/0318254 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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AGM reminder
by Peter Reutemann 05 Jan '21

05 Jan '21

Hi everyone Just a reminder that our AGM will be held on January 25th: https://www.meetup.com/WaikatoLinuxUsersGroup/events/274861121/ https://gettogether.community/events/8427/wlug-agm/ Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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The Splinternet Is Coming
by Lawrence D'Oliveiro 05 Jan '21

05 Jan '21

Countries like Russia, Iran and China are exerting more and more control over how Internet traffic crosses their borders. They are moving towards--or in some cases have already achieved--the ability to completely cut themselves off from the wider Internet and continue functioning with some autonomy. Also seems like China is promoting new protocol standards that will make this process even easier. I also learned of the existence of an organization called “Internet Sans Frontières”, which you would think is a tautology. But for how much longer? <https://www.theregister.com/2021/01/04/welcome_to_the_splinternet/>

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Malware Uses WiFi BSSID for Victim Identification
by Peter Reutemann 05 Jan '21

05 Jan '21

'Malware operators who want to know the location of the victims they infect usually rely on a simple technique where they grab the victim's IP address and check it against an IP-to-geo database like MaxMind's GeoIP to get a victim's approximate geographical location. While the technique isn't very accurate, it is still the most reliable method of determining a user's actual physical location based on data found on their computer. However, in a blog post last month, Xavier Mertens, a security researcher with the SANS Internet Storm Center, said he discovered a new malware strain that is using a second technique on top of the first. This second technique relies on grabbing the infected user's BSSID. Known as a "Basic Service Set Identifier," the BSSID is basically the MAC physical address of the wireless router or access point the user is using to connect via WiFi. You can see the BSSID on Windows systems by running the command: netsh wlan show interfaces | find "BSSID" Mertens said the malware he discovered was collecting the BSSID and then checking it against a free BSSID-to-geo database maintained by Alexander Mylnikov.' -- source: https://it.slashdot.org/story/21/01/04/2042204 Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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free/open-source software...
by Peter Reutemann 04 Jan '21

04 Jan '21

Hi everyone Below are some free/open-source software projects that I've stumbled across over the Xmas break, which I hadn't heard of before but sound interesting: NATRON Open Source Compositing Software For VFX and Motion Graphics. https://natrongithub.github.io/ RawTherapee a free, cross-platform raw image processing program https://rawtherapee.com/ Lightworks For over 25 years Lightworks editor has been at the forefront of film editing, having been used on many of the finest films in cinema history: The Wolf of Wall Street, LA Confidential, Pulp Fiction, Heat, Road to Perdition, Hugo, The King’s Speech and many more! https://www.lwks.com/ Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 577-5304 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/

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