ZDI-CAN-20727: 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-CAN-20727?
ZDI-CAN-20727 has a high severity rating due to its potential to allow arbitrary code execution.
How do I fix ZDI-CAN-20727?
To fix ZDI-CAN-20727, update your D-Link DIR-X3260 router to the latest firmware version provided by D-Link.
Who is affected by ZDI-CAN-20727?
ZDI-CAN-20727 affects installations of the D-Link DIR-X3260 routers.
Can ZDI-CAN-20727 be exploited remotely?
Yes, ZDI-CAN-20727 can be exploited by network-adjacent attackers without requiring authentication.
What component is vulnerable in ZDI-CAN-20727?
The vulnerability exists within the prog.cgi binary that handles HNAP requests.