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Security Leftovers

Submitted by Roy Schestowitz on Tuesday 14th of June 2022 04:01:57 PM Filed under
Security
  • Security updates for Tuesday [LWN.net]

    Security updates have been issued by Fedora (golang-github-docker-libnetwork and moby-engine), Mageia (apache, docker-containerd, kernel, kernel-linus, nats-server, and php-smarty), Slackware (php), SUSE (gimp, grub2, thunderbird, u-boot, and xen), and Ubuntu (firefox, liblouis, ncurses, and rsync).

  • Detect cloud native security threats with Tracee | InfoWorld

    Open source Tracee uses Linux eBPF technology to trace system and applications at runtime, and analyzes collected events to detect suspicious behavioral patterns.

  • The Three Best Tools You Need to Scan Your Linux System for Malware

    While Linux Servers are already extremely secure by default, there are extra steps you can and should take if you do have a Linux Server instance running. As with any system, vulnerabilities still exist and can wreak havoc if proper prevention and security best practices are not implemented. Of course, the most well known and most basic security tip people will tell you is to keep up to date with updates and security patches. (As we all should!) However, this will only do so much. Linux being amongst one of the most widely implemented and deployed operating systems makes it an attractive target for cybercriminals trying to steal your information, install malicious files on your system, and even try to run malicious scripts to take control of your system.

»

Google Project Zero

Submitted by Roy Schestowitz on Tuesday 14th of June 2022 04:40:23 PM.
  • Project Zero: An Autopsy on a Zombie In-the-Wild 0-day

    Whenever there’s a new in-the-wild 0-day disclosed, I’m very interested in understanding the root cause of the bug. This allows us to then understand if it was fully fixed, look for variants, and brainstorm new mitigations. This blog is the story of a “zombie” Safari 0-day and how it came back from the dead to be disclosed as exploited in-the-wild in 2022. CVE-2022-22620 was initially fixed in 2013, reintroduced in 2016, and then disclosed as exploited in-the-wild in 2022. If you’re interested in the full root cause analysis for CVE-2022-22620, we’ve published it here.

    In the 2020 Year in Review of 0-days exploited in the wild, I wrote how 25% of all 0-days detected and disclosed as exploited in-the-wild in 2020 were variants of previously disclosed vulnerabilities. Almost halfway through 2022 and it seems like we’re seeing a similar trend. Attackers don’t need novel bugs to effectively exploit users with 0-days, but instead can use vulnerabilities closely related to previously disclosed ones. This blog focuses on just one example from this year because it’s a little bit different from other variants that we’ve discussed before. Most variants we’ve discussed previously exist due to incomplete patching. But in this case, the variant was completely patched when the vulnerability was initially reported in 2013. However, the variant was reintroduced 3 years later during large refactoring efforts. The vulnerability then continued to exist for 5 years until it was fixed as an in-the-wild 0-day in January 2022.

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