CVE-2021-36705 Command injection in n/a

Critical 9.8 Published 6 Aug 2021 Updated 4 Aug 2024

Attackers can execute arbitrary commands on ProLink PRC2402M routers via the TR069_local_port parameter in the adm.cgi binary.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-36705?

CVE-2021-36705 is a critical command injection vulnerability in n/a, published on 6 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In ProLink PRC2402M V1.0.18 and older, the set_TR069 function in the adm.cgi binary, accessible with a page parameter value of TR069 contains a trivial command injection where the value of the TR069_local_port parameter is passed directly to system.

Weakness: CWE-78

Which versions are affected by CVE-2021-36705?

It affects 1 product.

Products include Prolink Prc2402m Firmware.

How do I fix CVE-2021-36705?

No fix has been published for CVE-2021-36705 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-2021-36705 being exploited?

There is no known exploitation of CVE-2021-36705 in the wild and no public exploit code.

Sources

Also known as GHSA-6f6j-c55c-5gxx.