ZDI-CAN-11797: Cisco RV340 set_snmp usmUserAuthKey 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 usmUserAuthKey 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.

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• agent/softwarecombine
• collector/zdi-advisory
• source/ZDI
• alias/ZDI-21-558
• alias/ZDI-CAN-11797
• alias/CVE-2021-1413
• agent/software-canonical-lookup
• agent/severity
• agent/title
• agent/type
• agent/event
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• vendor/cisco
• canonical/cisco rv340