CVE-2023-40480 NETGEAR RAX30 DHCP Server Command Injection Remote Code Execution Vulnerability

High 8.8 Published 3 May 2024 Updated 2 Aug 2024

Network-adjacent attackers can execute arbitrary code as root on NETGEAR RAX30 routers via a command injection flaw in the DHCP server.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-40480?

CVE-2023-40480 is a high-severity command injection vulnerability in NETGEAR RAX30, published on 3 May 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

NETGEAR RAX30 DHCP Server Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR RAX30 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the DHCP server. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19705.

Weakness: CWE-78

Which versions are affected by CVE-2023-40480?

It affects 1 product.

Products include Netgear Rax30 Firmware.

How do I fix CVE-2023-40480?

No fix has been published for CVE-2023-40480 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-2023-40480 being exploited?

There is no known exploitation of CVE-2023-40480 in the wild and no public exploit code.

Sources

Also known as GHSA-3fm9-5pf4-mg8g.