ZDI-CAN-21101: ZDI-23-1519: (0Day) D-Link DIR-X3260 SetTriggerPPPoEValidate Username Command Injection Remote Code Execution Vulnerability
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-X3260 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the prog.cgi program, 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 using it to execute a system call. 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. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The ZDI has assigned a CVSS rating of 8.0. The following CVEs are assigned: CVE-2023-44421.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-21101?
The severity of ZDI-CAN-21101 is considered high due to the ability for attackers to execute arbitrary code.
Who is affected by ZDI-CAN-21101?
D-Link DIR-X3260 routers are directly affected by the ZDI-CAN-21101 vulnerability.
How do I fix ZDI-CAN-21101?
To mitigate ZDI-CAN-21101, you should update your D-Link DIR-X3260 routers to the latest firmware version provided by D-Link.
Can ZDI-CAN-21101 be exploited remotely?
ZDI-CAN-21101 typically requires network adjacency, meaning the attacker must be on the same local network to exploit the vulnerability.
Is authentication required to exploit ZDI-CAN-21101?
Yes, authentication is required to exploit ZDI-CAN-21101, but it can be bypassed due to weaknesses in the authentication mechanism.