CVE-2020-26893 Auth bypass in n/a

High 7.8 Published Updated

Attackers can bypass authentication in ClamXAV 3's helper tool to perform privileged operations and execute code via a maliciously modified older version.

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-2020-26893?

CVE-2020-26893 is a high-severity authentication bypass vulnerability in n/a, published on 16 Oct 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was discovered in ClamXAV 3 before 3.1.1. A malicious actor could use a properly signed copy of ClamXAV 2 (running with an injected malicious dylib) to communicate with ClamXAV 3's helper tool and perform privileged operations. This occurs because of inadequate client verification in the helper tool.

Weakness: CWE-345

Which versions are affected by CVE-2020-26893?

It affects 1 product.

Products include Clamxav Clamxav.

How do I fix CVE-2020-26893?

No fix has been published for CVE-2020-26893 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-2020-26893 being exploited?

There is no known exploitation of CVE-2020-26893 in the wild and no public exploit code.

Sources

Also known as GHSA-w39g-j8qq-3fch.

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