CVE-2023-5372 Command injection in NAS326 firmware

High 7.2 Published 30 Jan 2024 Updated 23 Aug 2024

Authenticated administrators can execute arbitrary OS commands via crafted URL parameters in Zyxel NAS web interfaces.

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

What is CVE-2023-5372?

CVE-2023-5372 is a high-severity command injection vulnerability in Zyxel NAS326 firmware, published on 30 Jan 2024. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The post-authentication command injection vulnerability in Zyxel NAS326 firmware versions through V5.21(AAZF.15)C0 and NAS542 firmware versions through V5.21(ABAG.12)C0 could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands by sending a crafted query parameter attached to the URL of an affected device’s web management interface.

Weakness: CWE-78

Which versions are affected by CVE-2023-5372?

It affects 2 products.

Products include Zyxel Nas326 Firmware, Zyxel Nas542 Firmware.

How do I fix CVE-2023-5372?

No fix has been published for CVE-2023-5372 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-2023-5372 being exploited?

There is no known exploitation of CVE-2023-5372 in the wild and no public exploit code.

Sources

Also known as GHSA-hgw6-wf28-c5x3.