CVE-2024-29973 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 POST request to the setCookie parameter.

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-2024-29973?

CVE-2024-29973 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 “setCookie” parameter 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-2024-29973?

It affects 2 products.

Products include Zyxel Nas326 Firmware, Zyxel Nas542 Firmware.

How do I fix CVE-2024-29973?

No fix has been published for CVE-2024-29973 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-2024-29973 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-29973 exists.

Public exploit code: 1 Nuclei template and 6 proofs of concept on GitHub.

Sources

Also known as GHSA-2w49-w2vv-p84h.