CVE-2019-8634 Auth bypass in macOS

High 8.8 Published Updated

An authentication flaw in macOS allows a user to be unexpectedly logged into another user's account, enabling unauthorized access.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-8634?

CVE-2019-8634 is a high-severity authentication bypass vulnerability in Apple Mac Os X, published on 18 Dec 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An authentication issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.5. A user may be unexpectedly logged in to another user’s account.

Weakness: CWE-287

Which versions are affected by CVE-2019-8634?

It affects 1 product.

Products include Apple Mac Os X.

How do I fix CVE-2019-8634?

No fix has been published for CVE-2019-8634 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2019-8634 being exploited?

There is no known exploitation of CVE-2019-8634 in the wild and no public exploit code.

All Apple Mac Os X vulnerabilities

Sources

Also known as GHSA-fhpw-7642-ff4w.

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