CVE Vulnerabilities

CVE-2022-20742

Missing Cryptographic Step

Published: May 03, 2022 | Modified: Nov 21, 2024
CVSS 3.x
7.4
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in an IPsec VPN library of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to read or modify data within an IPsec IKEv2 VPN tunnel. This vulnerability is due to an improper implementation of Galois/Counter Mode (GCM) ciphers. An attacker in a man-in-the-middle position could exploit this vulnerability by intercepting a sufficient number of encrypted messages across an affected IPsec IKEv2 VPN tunnel and then using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to decrypt, read, modify, and re-encrypt data that is transmitted across an affected IPsec IKEv2 VPN tunnel.

Weakness

The product does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than advertised by the algorithm.

Affected Software

Name Vendor Start Version End Version
Firepower_threat_defense Cisco * 6.4.0.15 (excluding)
Firepower_threat_defense Cisco 6.5.0 (including) 6.6.5.2 (excluding)
Firepower_threat_defense Cisco 7.0.0 (including) 7.0.2 (excluding)
Firepower_threat_defense Cisco 7.1.0 (including) 7.1.0 (including)
Adaptive_security_appliance_software Cisco * 9.12.4.38 (excluding)
Adaptive_security_appliance_software Cisco 9.13.0 (including) 9.14.4 (excluding)
Adaptive_security_appliance_software Cisco 9.15.0 (including) 9.15.1.21 (excluding)
Adaptive_security_appliance_software Cisco 9.16.0 (including) 9.16.2.14 (excluding)
Adaptive_security_appliance_software Cisco 9.17.0 (including) 9.17.1.7 (excluding)

References