CVE-2023-44421 D-Link DIR-X3260 SetTriggerPPPoEValidate Username Command Injection Remote Code Execution Vulnerability

High 8.0 Published 3 May 2024 Updated 2 Aug 2024

Network-adjacent attackers can execute arbitrary code as root on D-Link DIR-X3260 routers via command injection in the HNAP interface.

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

What is CVE-2023-44421?

CVE-2023-44421 is a high-severity command injection vulnerability in D-Link DIR-X3260, 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

D-Link DIR-X3260 SetTriggerPPPoEValidate Username Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the prog.cgi program, which handles HNAP requests made to the lighttpd webserver listening on TCP ports 80 and 443. 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-21101.

Weakness: CWE-78

Which versions are affected by CVE-2023-44421?

It affects 1 product.

Products include Dlink Dir-X3260 Firmware.

How do I fix CVE-2023-44421?

No fix has been published for CVE-2023-44421 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-2023-44421 being exploited?

There is no known exploitation of CVE-2023-44421 in the wild and no public exploit code.

Sources

Also known as GHSA-pc7x-g97r-j6wq.