CVE-2023-35739 Memory corruption in DAP-2622

High 8.8 Published 3 May 2024 Updated 18 Sep 2024

Network-adjacent attackers can execute arbitrary code as root on D-Link DAP-2622 devices via a stack-based buffer overflow in the DDP service.

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-2023-35739?

CVE-2023-35739 is a high-severity memory corruption vulnerability in Dlink Dap-2622 Firmware, 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 DAP-2622 DDP Configuration Backup Server IPv6 Address Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the DDP service. 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-20066.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2023-35739?

It affects 1 product.

Products include Dlink Dap-2622 Firmware.

How do I fix CVE-2023-35739?

No fix has been published for CVE-2023-35739 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-2023-35739 being exploited?

There is no known exploitation of CVE-2023-35739 in the wild and no public exploit code.

All Dlink Dap-2622 Firmware vulnerabilities

Sources

Also known as GHSA-9w3w-6xhh-85vw.