Input validation error in Cisco Firewall Threat Defense (FTD) and Cisco Adaptive Security Appliance (ASA) - CVE-2022-20745
Published: April 27, 2022
Vulnerability identifier: #VU62667
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20745
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the web services interface for remote access VPN feature. A remote attacker can send specially crafted HTTP requests to the device and perform a denial of service (DoS) attack.
Affected software
Cisco Firewall Threat Defense (FTD)
Cisco Adaptive Security Appliance (ASA)
Cisco Adaptive Security Appliance (ASA)
How to mitigate CVE-2022-20745
Install updates from vendor's website.
Cisco Firewall Threat Defense (FTD) - addressed in versions 6.4.0.13, 6.6.5.1, 6.7.0.4
Cisco Adaptive Security Appliance (ASA) - addressed in versions 9.12.4.35, 9.14.3.13, 9.15.1.21, 9.16.2.7
Cisco Adaptive Security Appliance (ASA) - addressed in versions 9.12.4.35, 9.14.3.13, 9.15.1.21, 9.16.2.7