CVE-2023-41229 D-Link DIR-3040 HTTP Request Processing Referer Heap-Based Buffer Overflow Remote Code Execution Vulnerability
Network-adjacent attackers can execute arbitrary code as root on D-Link DIR-3040 routers via a heap-based buffer overflow in HTTP request processing.
- 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-2023-41229?
CVE-2023-41229 is a high-severity memory corruption vulnerability in D-Link DIR-3040, 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-3040 HTTP Request Processing Referer Heap-Based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-3040 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the prog.cgi binary, 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 copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-21671.
Which versions are affected by CVE-2023-41229?
It affects 1 product.
Products include Dlink Dir-3040 Firmware.
How do I fix CVE-2023-41229?
No fix has been published for CVE-2023-41229 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-2023-41229 being exploited?
There is no known exploitation of CVE-2023-41229 in the wild and no public exploit code.
Other vulnerabilities in D-Link DIR-3040
Sources
Also known as GHSA-7fh8-jfq5-3gc5.