Microsoft Discovered The Powerdir Vulnerability In MacOS And Reported It To Apple – GHacks

The Microsoft 365 Defender Analysis Crew has revealed that it found a safety vulnerability in macOS Monterey. That is the 2nd time the Redmond firm found a safety difficulty in macOS, after the Shrootless vulnerability, that got here to gentle in October 2021.

What's the Powerdir vulnerability?

It's a safety loophole that impacts a element in macOS referred to as Transparency, Consent, and Management (TCC). This expertise stop apps from accessing the person's private knowledge just like the iCloud, Calendar, in addition to {hardware} such because the digicam, microphone and placement. Apple had a safety characteristic in place to limit apps from accessing TCC, this coverage solely allowed apps with full disk entry to make adjustments. Microsoft's researchers found that altering the house listing of a person, and spoofing a pretend TCC database as an alternative, was sufficient to permit apps to bypass TCC's safety and compromise the info it ought to have protected. This exploit might have doubtlessly be used for focused assaults, e.g. a hacker might set up change an app with a malicious one to file personal conversations, take screenshots of the person's display, aka spy on the person.

The above screenshot, from Microsoft's crew, reveals a proof-of-concept exploit to focus on how the Powerdir vulnerability was profitable in having access to the person knowledge. This isn't the primary time TCC has been discovered to be weak, writes, Jonathan Bar Or, Senior Safety Researcher at Microsoft.

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