A vulnerability in the TLS handler of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to gain access to sensitive information. This vulnerability is due to improper implementation of countermeasures against a Bleichenbacher attack on a device that uses SSL decryption policies. An attacker could exploit this vulnerability by sending crafted TLS messages to an affected device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2022-11-10T17:38:07.193Z

Updated: 2024-08-03T02:31:58.809Z

Reserved: 2021-11-02T13:28:29.193Z

Link: CVE-2022-20940

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-11-15T21:15:34.650

Modified: 2024-11-21T06:43:51.993

Link: CVE-2022-20940

cve-icon Redhat

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