ZDI-24-445: (0Day) D-Link DIR-3040 prog.cgi websSecurityHandler Memory Leak Denial-of-Service Vulnerability
First published: Tue May 14 2024(Updated: )
This vulnerability allows network-adjacent attackers to create a denial-of-service condition 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 program, which handles HNAP requests made to the lighttpd webserver listening on ports 80 and 443. The issue results from the lack of proper memory management when processing HTTP cookie values. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DIR-3040 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-24-445?
The severity of ZDI-24-445 is classified as high due to its potential to cause a denial-of-service condition.
How do I fix ZDI-24-445?
To fix ZDI-24-445, users should update their D-Link DIR-3040 router firmware to the latest version provided by D-Link.
Who is affected by ZDI-24-445?
ZDI-24-445 affects installations of D-Link DIR-3040 routers that have not been updated to mitigate the vulnerability.
Can ZDI-24-445 be exploited remotely?
Yes, ZDI-24-445 can be exploited by network-adjacent attackers without requiring authentication.
What is the nature of the vulnerability in ZDI-24-445?
ZDI-24-445 is a vulnerability in the prog.cgi program that manages HNAP requests, leading to the potential for denial-of-service.
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