Improper Certificate Validation in Cisco Systems, Inc products - CVE-2022-20704

Vulnerability identifier: #VU60251

CSH Severity: Medium

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-20704

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper validation of the TLS server certificate that is received when establishing a connection to specific remote servers. A remote attacker can view or alter information that is shared between an affected device and specific Cisco servers , e.g. cloudsso.cisco.com and api.cisco.com.

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

Install updates from vendor's website.

Cisco RV345P Dual WAN Gigabit VPN Router - update to 1.0.03.26
Cisco RV345 Dual WAN Gigabit VPN Router - update to 1.0.03.26
Cisco RV340 Dual WAN Gigabit VPN Router - update to 1.0.03.26
Cisco RV340W Dual WAN Gigabit Wireless-AC VPN Router - update to 1.0.03.26

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-smb-mult-vuln-KA9PK6D

• Multiple vulnerabilities in Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers
• Multiple vulnerabilities in Cisco Small Business RV Series Routers