OS Command Injection in Cisco Systems, Inc products - CVE-2021-1602
Published: August 5, 2021
Vulnerability identifier: #VU55604
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-2021-1602
CWE-ID: CWE-78
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
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 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
How to mitigate CVE-2021-1602
Install updates from vendor's website.
Cisco Small Business RV160 Series VPN Router - update to 1.0.01.04
Cisco Small Business RV160W Wireless-AC VPN Router - update to 1.0.01.04
Cisco Small Business RV260 VPN Router - update to 1.0.01.04
Cisco Small Business RV260P VPN Router with POE - update to 1.0.01.04
Cisco Small Business RV260W Wireless-AC VPN Router - update to 1.0.01.04
Cisco Small Business RV160W Wireless-AC VPN Router - update to 1.0.01.04
Cisco Small Business RV260 VPN Router - update to 1.0.01.04
Cisco Small Business RV260P VPN Router with POE - update to 1.0.01.04
Cisco Small Business RV260W Wireless-AC VPN Router - update to 1.0.01.04