D-Link DAP-1325 HNAP SetAPLanSettings SubnetMask command injection

Summaryinfo

A vulnerability was found in D-Link DAP-1325 and classified as critical. The impacted element is the function SetAPLanSettings of the component HNAP. Such manipulation of the argument SubnetMask leads to command injection. This vulnerability is referenced as CVE-2023-41194. The attack needs to be initiated within the local network. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in D-Link DAP-1325 (the affected version is unknown) and classified as critical. Affected by this issue is the function SetAPLanSettings of the component HNAP. The manipulation of the argument SubnetMask with an unknown input leads to a command injection vulnerability. Using CWE to declare the problem leads to CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

D-Link DAP-1325 HNAP SetAPLanSettings SubnetMask Command Injection Remote Code Execution Vulnerability. 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. Was ZDI-CAN-18814.

The weakness was published 09/07/2023 as ZDI-23-1302. The advisory is shared for download at zerodayinitiative.com. This vulnerability is handled as CVE-2023-41194 since 08/24/2023. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/12/2025). The MITRE ATT&CK project declares the attack technique as T1202.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• D-Link

Name

• DAP-1325

License

• commercial

Website

• Vendor: https://www.dlink.com/

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