ZDI-24-036: D-Link DIR-X3260 prog.cgi SetSysEmailSettings Stack-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 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 fixed-length stack-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 required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 6.8. The following CVEs are assigned: CVE-2023-51616.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-24-036?
The severity of ZDI-24-036 is high, as it allows network-adjacent attackers to execute arbitrary code on vulnerable D-Link DIR-X3260 routers.
How do I fix ZDI-24-036?
To fix ZDI-24-036, users should update their D-Link DIR-X3260 routers to the latest firmware version provided by D-Link.
Who is affected by ZDI-24-036?
ZDI-24-036 affects installations of the D-Link DIR-X3260 routers that have not been patched.
Is authentication required to exploit ZDI-24-036?
Yes, authentication is required to exploit the ZDI-24-036 vulnerability on affected D-Link DIR-X3260 routers.
What should I monitor for related to ZDI-24-036?
Monitor your D-Link DIR-X3260 router logs for any unusual activity that may indicate attempts to exploit the ZDI-24-036 vulnerability.