CVE-2021-42759 Command injection in Fortinet Meru AP

Medium 6.7 Published Updated

Attackers can execute unauthorized code or commands on Fortinet Meru Access Points via crafted CLI commands due to secure design violations.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-42759?

CVE-2021-42759 is a medium-severity command injection vulnerability in Fortinet Meru AP, published on 9 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A violation of secure design principles in Fortinet Meru AP version 8.6.1 and below, version 8.5.5 and below allows attacker to execute unauthorized code or commands via crafted cli commands.

Weakness: CWE-78

Which versions are affected by CVE-2021-42759?

It affects 1 product.

Products include Fortinet Meru Firmware.

How do I fix CVE-2021-42759?

No fix has been published for CVE-2021-42759 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2021-42759 being exploited?

There is no known exploitation of CVE-2021-42759 in the wild and no public exploit code.

Sources

Also known as GHSA-h9rw-2gc4-4x9v.

Is CVE-2021-42759 in your software?

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