ZDI-CAN-21593: 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-CAN-21593?
The severity of ZDI-CAN-21593 is considered critical due to its potential for arbitrary code execution.
How do I fix ZDI-CAN-21593?
To fix ZDI-CAN-21593, update the D-Link DIR-X3260 router firmware to the latest version provided by the vendor.
Who is affected by ZDI-CAN-21593?
ZDI-CAN-21593 affects users of the D-Link DIR-X3260 router.
Is authentication required to exploit ZDI-CAN-21593?
Yes, authentication is required to exploit the vulnerability identified as ZDI-CAN-21593.
What can attackers do with ZDI-CAN-21593?
Attackers can execute arbitrary code on affected D-Link DIR-X3260 routers if they successfully exploit ZDI-CAN-21593.