CVE-2024-29972 Command injection in NAS326 firmware

Critical 9.8 Published 4 Jun 2024 Updated 2 Aug 2024

Unauthenticated attackers can execute OS commands on Zyxel NAS devices via a crafted HTTP request to the remote help CGI program.

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-2024-29972?

CVE-2024-29972 is a critical command injection vulnerability in Zyxel NAS326 firmware, published on 4 Jun 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

** UNSUPPORTED WHEN ASSIGNED ** The command injection vulnerability in the CGI program "remote_help-cgi" in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute some operating system (OS) commands by sending a crafted HTTP POST request.

Weakness: CWE-78

Which versions are affected by CVE-2024-29972?

It affects 2 products.

Products include Zyxel Nas326 Firmware, Zyxel Nas542 Firmware.

How do I fix CVE-2024-29972?

No fix has been published for CVE-2024-29972 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-2024-29972 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-29972 exists.

Public exploit code: 1 Nuclei template and 2 proofs of concept on GitHub.

Sources

Also known as GHSA-9c67-m3v4-35rv.