CVE-2018-6336 Security feature bypass in osquery

High 7.8 Published Updated

Attackers can execute malicious unsigned code by bypassing Apple code signing checks via crafted fat binaries in osquery.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2018-6336?

CVE-2018-6336 is a high-severity vulnerability in Facebook osquery, published on 31 Dec 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

An issue was discovered in osquery. A maliciously crafted Universal/fat binary can evade third-party code signing checks. By not completing full inspection of the Universal/fat binary, the user of the third-party tool will believe that the code is signed by Apple, but the malicious unsigned code will execute. This issue affects osquery prior to v3.2.7

Weakness: CWE-354, CWE-254

Which versions are affected by CVE-2018-6336?

It affects 1 product.

Products include Linuxfoundation Osquery.

How do I fix CVE-2018-6336?

No fix has been published for CVE-2018-6336 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-6336 being exploited?

There is no known exploitation of CVE-2018-6336 in the wild and no public exploit code.

Sources

Also known as GHSA-4xm5-4w7j-j8qm.

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