Advisory Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DIR-1260 and DIR-2150 routers. Authentication is required to exploit this vulnerability.

The specific flaw exists within the CLI service, which listens on TCP port 23. 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.

12/23/22 – The ZDI reported the vulnerability to the vendor.

08/25/23 – ZDI asked for an update.

08/30/23 – The vendor states this might be fixed but would need verification.

09/29/23 – The ZDI informed the vendor that the case will be published as a zero-day advisory on 10/04/23.

-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.

• 2022-12-29 - Vulnerability reported to vendor
• 2023-10-04 - Coordinated public release of advisory