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Incorrect Implementation of Authentication Algorithm

CVE-2023-32152

Medium
6.5/10

Summary

D-Link DIR-2640 HNAP LoginPassword Authentication Bypass Vulnerability. This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-2640 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web management interface, which listens on TCP port 80 by default. A specially crafted login request can cause authentication to succeed without providing proper credentials. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-19549.

  • LOW
  • ADJACENT_NETWORK
  • HIGH
  • UNCHANGED
  • NONE
  • NONE
  • NONE
  • NONE

CWE-303 - Incorrect Implementation of Authentication Algorithm

The requirements for the software dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.

References

Advisory Timeline

  • Published