Advisory Details

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1325 routers. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of a request parameter provided to the HNAP1 SOAP endpoint. 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.

09/26/22 – ZDI reported the vulnerability to the vendor.

08/25/23 – ZDI asked for an update.

08/30/23 – The vendor states the issues in DAP-1325 should be addressed in a previous update.

08/31/23 – ZDI informed the vendor that these cases were not included in the update.

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.

• 2022-09-26 - Vulnerability reported to vendor
• 2023-10-04 - Coordinated public release of advisory