8.8
Advisory Published

ZDI-22-1494: D-Link DIR-1935 HNAP PrivateLogin Authentication Bypass Vulnerability

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-1935 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system.

Affected SoftwareAffected VersionHow to fix
D-Link DIR-1935 Firmware

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Frequently Asked Questions

  • What is the severity of ZDI-22-1494?

    The severity of ZDI-22-1494 is classified as high due to the potential for unauthorized access to the router.

  • How do I fix ZDI-22-1494?

    To fix ZDI-22-1494, update your D-Link DIR-1935 router to the latest firmware provided by D-Link.

  • What type of vulnerability is ZDI-22-1494?

    ZDI-22-1494 is an authentication bypass vulnerability affecting D-Link DIR-1935 routers.

  • Who is affected by ZDI-22-1494?

    Users of affected D-Link DIR-1935 routers are at risk from the ZDI-22-1494 vulnerability.

  • Can ZDI-22-1494 be exploited remotely?

    Yes, ZDI-22-1494 can be exploited by network-adjacent attackers without any prior authentication.

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