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Cisco Small Business RV016, RV042, RV042G, and RV082 Routers Arbitrary Command Execution Vulnerability

cisco-sa-20191106-sbrv-cmd-x · 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 to execute arbitrary commands with root privileges. The attacker must have either a valid credential or an active session token. The vulnerability is due to lack of input validation of the HTTP payload. An attacker could exploit this vulnerability by sending a malicious HTTP request to the web-based management interface of the targeted device. A successful exploit could allow the attacker to execute commands with root privileges. 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-sbrv-cmd-x

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-2019-15271
Cisco Bug IDsCSCvq95596, CSCvq97028, CSCvq97031
CVSS ScoreBase 8.8
Base 8.8 CVSS:3.0/AV:N/AC:L/PR:L/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-2019-15271 Cisco OpenVuln