ZDI-20-1100: Cisco RV340 upload.cgi 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 handling of the fileparam parameter provided to the upload.cgi endpoint. The issue results from the lack of proper validation of 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 Software | Affected Version | How to fix |
|---|---|---|
| Cisco RV340W Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-20-1100?
The severity of ZDI-20-1100 is considered high due to its ability to allow arbitrary code execution.
How do I fix ZDI-20-1100?
To fix ZDI-20-1100, update the Cisco RV340 router firmware to the latest version provided by Cisco.
Who is affected by ZDI-20-1100?
ZDI-20-1100 affects installations of Cisco RV340 routers that have not been updated.
Can ZDI-20-1100 be exploited remotely?
ZDI-20-1100 cannot be exploited remotely as it requires network-adjacent access.
What type of vulnerability is ZDI-20-1100?
ZDI-20-1100 is a remote code execution vulnerability in Cisco RV340 routers.
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