Improper access control in Cisco Systems, Inc products - CVE-2021-1472

Vulnerability identifier: #VU51986

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-1472

CWE-ID: CWE-284

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can send a specially crafted HTTP request, upload files to directories that should have been restricted.

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 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

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 Small Business RV160 Series VPN Router - update to 1.0.01.03
Cisco Small Business RV160W Wireless-AC VPN Router - update to 1.0.01.03
Cisco Small Business RV260 VPN Router - update to 1.0.01.03
Cisco Small Business RV260P VPN Router with POE - update to 1.0.01.03
Cisco Small Business RV260W Wireless-AC VPN Router - update to 1.0.01.03

• Exploit #7312 - Cisco Small Business RV Series Authentication Bypass and Command Injection (February 1, 2022)

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-rv-bypass-inject-Rbhgvfdx

• Multiple vulnerabilities in Cisco Small Business RV Series Routers