Zoom has issued a patch for a bug on macOS that would enable a hacker to take management of a person’s working system (through MacRumors). In an replace on its safety bulletin, Zoom acknowledges the problem (CVE-2022-28756) and says a repair is included in model 5.11.5 of the app on Mac, which you’ll be able to (and will) obtain now.
Patrick Wardle, a safety researcher and founding father of the Goal-See Basis, a nonprofit that creates open-source macOS safety instruments, first uncovered the flaw and offered it on the Def Con hacking convention final week. My colleague, Corin Faife, attended the occasion and reported on Wardle’s findings.
As Corin explains, the exploit targets the Zoom installer, which requires particular person permissions to run. By leveraging this software, Wardle discovered that hackers may basically “trick” Zoom into putting in a bug by placing Zoom’s cryptographic signature on the bundle. From right here, attackers can then acquire additional entry to a person’s system, letting them modify, delete, or add information on the gadget.
Reversing the patch, we see the Zoom installer now invokes lchown to replace the permissions of the replace .pkg, thus stopping malicious subversions pic.twitter.com/00xjqKQsXs
— patrick wardle (@patrickwardle) August 14, 2022
“Mahalos to Zoom for the (extremely) fast repair!” Wardle stated in response to Zoom’s replace. “Reversing the patch, we see the Zoom installer now invokes lchown to replace the permissions of the replace .pkg, thus stopping malicious subversion.”
You may set up the 5.11.5 replace on Zoom by first opening the app in your Mac and hitting zoom.us (this is likely to be completely different relying on what nation you’re in) from the menu bar on the high of your display screen. Then, choose Verify for updates, and if one’s accessible, Zoom will show a window with the most recent app model, together with particulars about what’s altering. From right here, choose Replace to start the obtain.
