ZDI-CAN-21222: ZDI-23-1525: (0Day) D-Link DIR-X3260 SetSysEmailSettings SMTPServerAddress 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 prog.cgi, 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-2023-44427.
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-21222?
The severity of ZDI-CAN-21222 is considered high due to its potential for arbitrary code execution.
How do I fix ZDI-CAN-21222?
To fix ZDI-CAN-21222, update the D-Link DIR-X3260 router firmware to the latest version provided by the manufacturer.
Who is affected by ZDI-CAN-21222?
Users of D-Link DIR-X3260 routers are affected by ZDI-CAN-21222.
Can ZDI-CAN-21222 be exploited remotely?
No, ZDI-CAN-21222 requires network-adjacent access for exploitation.
Is authentication necessary to exploit ZDI-CAN-21222?
Yes, authentication is required; however, the existing mechanism can be bypassed.