CVE-2022-20742
Cisco Secure Firewall Threat Defense
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.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.4 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N- Weakness
- CWE-325
- Assigned by
- psirt@cisco.com
Dates
- Published
- 2022-05-03
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Cisco Secure Firewall Threat Defense- 6.4.0.15, 6.5.0 - 6.6.5.2, 7.0.0 - 7.0.2, 7.1.0
- Cisco Adaptive Security Appliance Software- 9.12.4.38, 9.13.0 - 9.14.4, 9.15.0 - 9.15.1.21, 9.16.0 - 9.16.2.14, 9.17.0 - 9.17.1.7
As listed in the NVD configuration data. Not a statement about your estate.