Security Leftovers

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Apple patches zero-day kernel hole and much more – update now!
All still-supported flavours of macOS (Monterey, Big Sur and Catalina), as well as all current mobile devices (iPhones, iPads, Apple TVs and Apple Watches), get patches.
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Kernel-level code execution holes could grant an attacker control over the entire system, including the parts that manage the security of the rest of the system.
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JFrog Launches Blockchain Project to Secure Open Source Software
At its swampUP event, JFrog today launched Project Pyrsia, an open source project that uses a blockchain platform and Sigstore Cosign and Notary V2 cryptographic signature software to secure software packages. In addition to JFrog, other contributors to the project include Docker, Inc., DeployHub, Futureway and Oracle.
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Codenotary Adds Background Vulnerability Scanning
In its latest move, Codenotary has added free background vulnerability scanning service to its free and open source Community Attestation Service (CAS) code signing and attestation service to further secure open source supply chains. This new service uses hashes to identify known security vulnerabilities. Then if the scans find any it alerts you to the untrustworthy packages. CAS can then be used to “untrust” any problematic artifacts. This new scanning service is also continuously self-updating so it can help you stay ahead of would-be attackers.
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Screencastify fixes bug that would have let rogue websites spy on webcams
Screencastify, a popular Chrome extension for capturing and sharing videos from websites, was recently found to be vulnerable to a cross-site scripting (XSS) flaw that allowed arbitrary websites to dupe people into unknowingly activating their webcams.
A miscreant taking advantage of this flaw could then download the resulting video from the victim's Google Drive account.
Software developer Wladimir Palant, co-founder of ad amelioration biz Eyeo, published a blog post about his findings on Monday. He said he reported the XSS bug in February, and Screencastify's developers fixed it within a day.
But Palant contends the browser extension continues to pose a risk because the code trusts multiple partner subdomains, and an XSS flaw on any one of those sites could potentially be misused to attack Screencastify users.
The Screencastify page on the Chrome Web Store says that the browser extension has more than 10 million users, which is the maximum value listed by store metrics. As Palant points out, the extension is aimed at the education market, raising some unpleasant possibilities.
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Today in Techrights
| Eclypsium calls out Microsoft over bootloader security woes
Eclypsium researchers criticized Microsoft for its response to the discovery of three new bootloader vulnerabilities that could be exploited to gain control of systems during the boot process. During a DEF CON 30 session Friday, security platform provider Eclypsium's researchers delved into the vulnerabilities, which were disclosed in Microsoft's Patch Tuesday release this week. The three vulnerabilities exist in third-party bootloaders: Eurosoft Ltd. (CVE-2022-34301); New Horizon Datasys, Inc. (CVE-2022-34302); and Kidan's CryptoPro Secure Disk for BitLocker (CVE-2022-34303). If exploited, threat actors could bypass Secure Boot, a security protocol used by OEMs and operating system vendors to ensure bootloaders and Unified Extensible Firmware Interface (UEFI) drivers are authenticated through valid digital signatures. Bypassing the Secure Boot checks would allow threat actors to commit attacks, such as modifying the OS, disabling security controls and installing backdoors. Read on |
What’s New in GNOME 43?
GNOME is one of the most popular graphical desktop environments on Linux. Practically every distribution has a release featuring GNOME. Imagine the impact then, when the GNOME developers shook things up—to put it mildly—with GNOME 40. It changed the desktop paradigm from a vertical one to a horizontal one and changed the look, feel, and functionality of, amongst other things, the dock, the activities view, and workplaces. Releases 41 and 42 were much smaller in impact, concentrating on polishing the interface and ironing out wrinkles that remained after the iconoclastic changes to GNOME 40. GNOME 43 is more of the same. Don’t expect major changes this time round. That’s not to say it is inconsequential. There are the expected subtle cosmetic touches, with more applications adopting a deeper integration with the libadwaita theming engine. But there’s also new functionality, including the Files file browser being enhanced. It is now adaptive and will give a better user experience on mobile devices. Although GNOME 43 beta is available, it won’t be rolled out to the public until its actual launch date of September 21, 2022. Fedora 37 is slated to use GNOME 43. Ubuntu 22.10 probably won’t. Rolling distributions based on Arch such as Garuda Linux, Manjaro Linux, and EndeavourOS will pick it up shortly after its release date. Although this isn’t the finished product, looking at the beta is still worthwhile. Even if small changes may still be made between now and the launch date, all the big elements are already in place. The release candidate build is the one when the portcullis drops and no more changes can be made. This is slated for September 3, 2022. Read on | today's leftovers
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