CVE-2021-36706 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 sysCMD parameter in adm.cgi.

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-2021-36706?

CVE-2021-36706 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_sys_cmd function in the adm.cgi binary, accessible with a page parameter value of sysCMD contains a trivial command injection where the value of the command parameter is passed directly to system.

Weakness: CWE-78

Which versions are affected by CVE-2021-36706?

It affects 1 product.

Products include Prolink Prc2402m Firmware.

How do I fix CVE-2021-36706?

No fix has been published for CVE-2021-36706 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-2021-36706 being exploited?

There is no known exploitation of CVE-2021-36706 in the wild and no public exploit code.

Sources

Also known as GHSA-8g3m-7h36-26g3.