CVE-2022-24972 Missing authorization in TL-WR940N

Medium 6.5 Published 28 Mar 2023 Updated 19 Feb 2025

Network-adjacent attackers can access the httpd service without authentication to disclose stored credentials on TP-Link routers.

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-2022-24972?

CVE-2022-24972 is a medium-severity missing authorization vulnerability in TP-Link TL-WR940N, published on 28 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR940N 3.20.1 Build 200316 Rel.34392n (5553) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the lack of proper access control. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13911.

Weakness: CWE-284

Which versions are affected by CVE-2022-24972?

It affects 1 product.

Products include Tp-Link Tl-Wr940n Firmware.

How do I fix CVE-2022-24972?

No fix has been published for CVE-2022-24972 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2022-24972 being exploited?

There is no known exploitation of CVE-2022-24972 in the wild and no public exploit code.

Sources

Also known as GHSA-76hr-hr87-x887.