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Cisco Small Business Routers RV016, RV042, RV042G, RV082, RV320, and RV325 Command Injection Vulnerability

cisco-sa-20191106-sbr-cominj · High · Published · Updated

A vulnerability in the web-based management interface of certain Cisco Small Business RV Series Routers could allow an authenticated, remote attacker with administrative privileges to inject arbitrary commands into the underlying operating system. When processed, the commands will be executed with root privileges. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by providing malicious input to a specific field in the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system as the root user. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-sbr-cominj

Cisco advisory · CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

However, administrators can reduce the attack surface by disabling the Remote Management feature if there is no operational requirement to use it. Note that the feature is disabled by default.

Administrators can disable the Remote Management feature by choosing Firewall > General and unchecking the Remote Management check box. Disabling the feature will disable the web-based management interface on the WAN IP address, which is reachable through the WAN ports. The interface will still be available on the LAN IP address, which is reachable through the LAN ports.

CVEsCVE-2019-15957
Cisco Bug IDsCSCvq76768, CSCvr39939
CVSS ScoreBase 7.2
Base 7.2 CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
Product Names From Source
Cisco Small Business RV Series Router Firmware

Related Products

Product CVE Evidence
Cisco Small Business RV Series Router Firmware CVE-2019-15957 Cisco OpenVuln