Cisco Small Business RV Series Routers Command Injection Vulnerabilities

Vulnerability

The web-based management interface of Cisco Small Business RV320 and RV325 Series Routers, as well as RV016, RV042, and RV082 Routers, contains multiple command injection vulnerabilities due to improper validation of user-supplied input [1]. An authenticated attacker with administrative privileges can exploit these flaws. Affected firmware versions are those prior to the fixed releases detailed in Cisco's advisory [1].

Exploitation

An attacker must have valid administrative credentials to log in to the web-based management interface. No additional user interaction is required. The attacker sends crafted HTTP requests to vulnerable scripts, injecting arbitrary operating system commands [1]. The attack can be performed remotely over the network.

Impact

Successful exploitation allows the attacker to execute arbitrary commands on the underlying operating system with root privileges [1]. This results in full compromise of the device, including potential data exfiltration, further network attacks, and persistent control.

Mitigation

Cisco has released free firmware updates to address these vulnerabilities [1]. Customers are advised to upgrade to the fixed version indicated in the advisory. No workarounds are available. The fixed releases are provided for all affected models [1].