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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2022-05-03T03:16:01.369615Z

Updated: 2024-09-17T01:26:24.223Z

Reserved: 2021-11-02T00:00:00

Link: CVE-2022-20742

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-05-03T04:15:09.317

Modified: 2023-11-07T03:42:48.900

Link: CVE-2022-20742

cve-icon Redhat

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