![]() ![]() It is one of three such protections built into macOS, all of which are intended to alert users about files downloaded from the internet, and to prevent malware writers from tricking users into infecting their machines. Gatekeeper was introduced in OSX Lion (10.7) as an added layer of protection when users downloaded executables from the internet. The bug was given the common vulnerabilities and exposures (CVE) reference CVE-2021-30657 in Apple security notes, where it is described as a “logic issue” that could allow “a malicious application bypass Gatekeeper checks”. ![]() In a long technical blog post, fellow security researcher Patrick Wardle said the bug “trivially bypasses many core Apple security mechanisms, leaving Mac users at grave risk” and that “malware authors are already exploiting it in the wild as an 0day”. The bug was uncovered by security researcher Cedric Owens, who reported it to Apple. ![]() Apple Mac users are being urged to update to macOS Big Sur 11.3, released today, which patches a “massively bad” vulnerability that could allow malware to bypass layered protections built into the operating system. ![]()
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June 2023
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