CVE-2023-44420 D-Link DIR-X3260 prog.cgi Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability

High 8.8 Published 3 May 2024 Updated 2 Aug 2024

Network-adjacent attackers can bypass authentication on D-Link DIR-X3260 routers due to a flawed authentication algorithm in prog.cgi.

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-2023-44420?

CVE-2023-44420 is a high-severity authentication bypass 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 prog.cgi Incorrect Implementation of Authentication Algorithm Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-X3260 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the prog.cgi executable. The issue results from an incorrect implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the device. Was ZDI-CAN-21100.

Weakness: CWE-303

Which versions are affected by CVE-2023-44420?

It affects 1 product.

Products include Dlink Dir-X3260 Firmware.

How do I fix CVE-2023-44420?

No fix has been published for CVE-2023-44420 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-44420 being exploited?

There is no known exploitation of CVE-2023-44420 in the wild and no public exploit code.

Sources

Also known as GHSA-h9q2-gj3j-2x77.