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Ex-NSA hacker drops macOS High Sierra zero-day hours before launch


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The vulnerability lets an attacker steal the contents of a Keychain — without needing a password.


"Just hours before Apple is expected to roll out the new version of its desktop and notebook operating system, macOS High Sierra, a security researcher dropped a zero-day.

Patrick Wardle, a former NSA hacker who now serves as chief security researcher at ‎Synack, posted a video of the hack -- a password exfiltration exploit -- in action.

Passwords are stored in the Mac's Keychain, which typically requires a master login password to access the vault.

But Wardle has shown that the vulnerability allows an attacker to grab and steal every password in plain-text using an unsigned app downloaded from the internet, without needing that password.

He tweeted a short video demonstrating the hack."

The article and much more is here:



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They will release an upgrade with security patches at some point.   And it will be soon after all the other problems with High Sierra are identified and 'fixed'', which is why I never upgrade  to a new system during the first few weeks after release.

Pieere,  as I read the press release it said older operating systems that are Mac X series could also vulnerable.  



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Apple tried to reassure their customers saying Gatekeeper prevents it and that is erroneous. If you own an Apple Machine I would do as Barb Suggests and wait until all the fallout is over.

For today's new about Apple's answer that gatekeeper prevents it the answer is no. If you own an Apple read this and pass it on to any other friends using Apple:

https://threatpost.com/gatekeeper-alone-wont-mitigate-apple-keychain-attack/128172/?utm_source=newsletter&utm_medium=Email&utm_campaign=tp daily digest


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