7.5
Advisory Published
Advisory Published

ZDI-CAN-22383: ZDI-24-500: (Pwn2Own) TP-Link Omada ER605 Comexe DDNS Response Handling Heap-based Buffer Overflow Remote Code Execution Vulnerability

First published: Thu May 23 2024(Updated: )

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Omada ER605 routers. Authentication is not required to exploit this vulnerability. However, devices are vulnerable only if configured to use the Comexe DDNS service. The specific flaw exists within the handling of DNS responses. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.

Affected SoftwareAffected VersionHow to fix
TP-Link Omada ER605

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Frequently Asked Questions

  • What is the severity of ZDI-CAN-22383?

    ZDI-CAN-22383 is classified as a high severity vulnerability due to its potential for arbitrary code execution.

  • How do I fix ZDI-CAN-22383?

    To mitigate ZDI-CAN-22383, disable the Comexe DDNS service and update the TP-Link Omada ER605 firmware to the latest version.

  • Who is affected by ZDI-CAN-22383?

    Users of TP-Link Omada ER605 routers configured to use the Comexe DDNS service are affected by ZDI-CAN-22383.

  • Can ZDI-CAN-22383 be exploited without authentication?

    Yes, ZDI-CAN-22383 can be exploited by network-adjacent attackers without requiring any authentication.

  • What type of vulnerability is ZDI-CAN-22383?

    ZDI-CAN-22383 is a remote code execution vulnerability that allows for arbitrary code execution on the affected routers.

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