ZDI-23-1516: (0Day) D-Link DIR-X3260 Prog.cgi 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-X3260 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. The issue results from the lack of proper validation of the length an user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
Other sources
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2023-44418.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-23-1516?
ZDI-23-1516 has been classified as a high severity vulnerability due to its ability to allow arbitrary code execution.
How do I fix ZDI-23-1516?
To fix ZDI-23-1516, update your D-Link DIR-X3260 router to the latest firmware provided by D-Link.
Who is affected by ZDI-23-1516?
ZDI-23-1516 affects installations of D-Link DIR-X3260 routers that have not been patched.
Can ZDI-23-1516 be exploited remotely?
Yes, ZDI-23-1516 can be exploited remotely by attackers without authentication.
What component of D-Link DIR-X3260 is vulnerable in ZDI-23-1516?
The prog.cgi binary handling HNAP requests is the specific component vulnerable in ZDI-23-1516.