Insufficient verification of data authenticity in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2022-20795

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Main Vulnerability Database Vulnerabilities #VU62471

Insufficient verification of data authenticity in Cisco Adaptive Security Appliance (ASA) and Cisco Firewall Threat Defense (FTD) - CVE-2022-20795

Published: April 21, 2022


Vulnerability identifier: #VU62471
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20795
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromsie the target system.

The vulnerability exists due to suboptimal processing that occurs when establishing a Datagram TLS (DTLS) tunnel as part of an AnyConnect SSL VPN connection. A remote attacker can send specially crafted DTLS traffic and perform a denial of service (DoS) attack.


Affected software

Cisco Adaptive Security Appliance (ASA)
Cisco Firewall Threat Defense (FTD)

How to mitigate CVE-2022-20795

Install updates from vendor's website.


External References

Related Security Bulletins