Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerabilities

Vulnerability

Multiple vulnerabilities exist in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W routers (all firmware versions prior to any fix) [1]. The bugs are due to insufficient validation of user fields within incoming HTTP packets, allowing an authenticated, remote attacker to cause arbitrary command execution or device reload resulting in denial of service [1].

Exploitation

An attacker must have valid Administrator credentials on the affected device [1]. To exploit, the attacker sends a crafted HTTP request to the web-based management interface (available via LAN connection, or WAN if remote management is enabled — disabled by default) [1]. No user interaction beyond successful authentication is required.

Impact

Successful exploitation allows the attacker to execute arbitrary commands with root-level privileges or force the device to restart unexpectedly, causing a denial of service condition [1]. This results in full compromise of device confidentiality, integrity, and availability.

Mitigation

Cisco has not released software updates and reports that there are no workarounds that address these vulnerabilities [1]. Affected products include RV110W, RV130, RV130W, and RV215W routers [1]. Users should monitor Cisco security advisories for future updates and consider restricting access to the management interface as a best practice [1].