Command Injection in Cisco Systems, Inc products - CVE-2022-20841

Vulnerability identifier: #VU66107

CSH Severity: High

CVSS v4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-20841

CWE-ID: CWE-77

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary commands on the target system.

The vulnerability exists due to improper input validation in the Open Plug and Play (PnP) module. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system with root privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Cisco Small Business RV160 Series VPN Router
Cisco Small Business RV160W Wireless-AC VPN Router
Cisco Small Business RV260 VPN Router
Cisco Small Business RV260P VPN Router with POE
Cisco Small Business RV260W Wireless-AC VPN Router
Cisco RV340 Dual WAN Gigabit VPN Router
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Cisco RV345 Dual WAN Gigabit VPN Router
Cisco RV345P Dual WAN Gigabit VPN Router

Install updates from vendor's website.

Cisco Small Business RV160 Series VPN Router - update to 1.0.01.09
Cisco Small Business RV160W Wireless-AC VPN Router - update to 1.0.01.09
Cisco Small Business RV260 VPN Router - update to 1.0.01.09
Cisco Small Business RV260P VPN Router with POE - update to 1.0.01.09
Cisco Small Business RV260W Wireless-AC VPN Router - update to 1.0.01.09
Cisco RV340 Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.28
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.28
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.28

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-mult-vuln-CbVp4SUR

• Multiple vulnerabilities in Cisco Small Business RV Series Routers