D-Link DAP-1325 HNAP SetAPLanSettings SecondaryDNS Command Injection Remote Code Execution Vulnerability

September 7th, 2023
ZDI-23-1301 ZDI-CAN-18813

CVE ID

CVE-2023-41193

CVSS Score

8.8 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

D-Link

Affected Products

DAP-1325

Vulnerability 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.

Additional Details

D-Link has issued an update to correct this vulnerability. More details can be found at:
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10351

Disclosure Timeline

  • 2022-09-26 - Vulnerability reported to vendor
  • 2023-09-07 - Coordinated public release of advisory

Credit

Dmitry "InfoSecDJ" Janushkevich of Trend Micro Zero Day Initiative

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