CVE-2020-36772 Path traversal in cagefs

Medium 4.4 Published Updated

Local attackers can read and write arbitrary files outside the CageFS environment via the sendmail proxy command.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2020-36772?

CVE-2020-36772 is a medium-severity path traversal vulnerability in Cloudlinux OS cagefs, published on 22 Jan 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

CloudLinux CageFS 7.0.8-2 or below insufficiently restricts file paths supplied to the sendmail proxy command. This allows local users to read and write arbitrary files of certain file formats outside the CageFS environment.

Weakness: CWE-610, CWE-73

Which versions are affected by CVE-2020-36772?

It affects 1 product.

Products include Cloudlinux Cagefs.

How do I fix CVE-2020-36772?

No fix has been published for CVE-2020-36772 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2020-36772 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36772 exists.

Sources

Also known as GHSA-xcjc-c88c-v52w.

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