Advisory Published

ZDI-CAN-11800: Cisco RV340 set_snmp usmUserEngineID Command Injection Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Cisco RV340 routers. Authentication is required to exploit this vulnerability. The specific flaw exists within the processing of JSON-RPC requests. When parsing the usmUserEngineID property, the process does not properly validate 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 the www-data user.

Affected SoftwareAffected VersionHow to fix
Cisco RV340W Firmware

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Frequently Asked Questions

  • What is the severity of ZDI-CAN-11800?

    ZDI-CAN-11800 is categorized as a critical vulnerability due to the potential for remote code execution.

  • How do I fix ZDI-CAN-11800?

    To fix ZDI-CAN-11800, update the firmware of the Cisco RV340 router to the latest version provided by Cisco.

  • Who is affected by ZDI-CAN-11800?

    ZDI-CAN-11800 affects installations of Cisco RV340 routers where authentication is required for exploitation.

  • What type of attack does ZDI-CAN-11800 facilitate?

    ZDI-CAN-11800 allows network-adjacent attackers to execute arbitrary code on affected Cisco RV340 routers.

  • Is authentication required to exploit ZDI-CAN-11800?

    Yes, authentication is required to exploit the vulnerability described in ZDI-CAN-11800.

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