CVE-2023-50225 TP-Link TL-WR902AC dm_fillObjByStr Stack-based Buffer Overflow Remote Code Execution Vulnerability

Medium 6.8 Published 3 May 2024 Updated 18 Sep 2024

Network-adjacent authenticated attackers can execute arbitrary code as root via a stack-based buffer overflow in TP-Link TL-WR902AC routers.

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

What is CVE-2023-50225?

CVE-2023-50225 is a medium-severity memory corruption vulnerability in TP-Link TL-WR902AC, 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

TP-Link TL-WR902AC dm_fillObjByStr Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link TL-WR902AC routers. Authentication is required to exploit this vulnerability.

The specific flaw exists within the libcmm.so module. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-21819.

Weakness: CWE-121

Which versions are affected by CVE-2023-50225?

It affects 1 product.

Products include Tp-Link Tl-Wr902ac Firmware.

How do I fix CVE-2023-50225?

No fix has been published for CVE-2023-50225 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-50225 being exploited?

There is no known exploitation of CVE-2023-50225 in the wild and no public exploit code.

Sources

Also known as GHSA-7r5g-fgfp-379w.