Command Injection in Cisco Systems, Inc products - CVE-2021-1473
Published: April 8, 2021 / Updated: February 1, 2022
Vulnerability identifier: #VU51987
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1473
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
Affected software
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
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router
Cisco RV345 Dual WAN Gigabit VPN Router
Cisco RV345P Dual WAN Gigabit VPN Router
How to mitigate CVE-2021-1473
Install updates from vendor's website.
Cisco RV340 Dual WAN Gigabit VPN Router - update to 1.0.03.21
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.21
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.21
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.21
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.21
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.21
Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.21