A vulnerability in the implementation of Security Assertion Markup Language (SAML) 2.0 single sign-on (SSO) for remote access VPN in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to intercept the SAML assertion of a user who is authenticating to a remote access VPN session. This vulnerability is due to insufficient validation of the login URL. An attacker could exploit this vulnerability by persuading a user to access a site that is under the control of the attacker, allowing the attacker to modify the login URL. A successful exploit could allow the attacker to intercept a successful SAML assertion and use that assertion to establish a remote access VPN session toward the affected device with the identity and permissions of the hijacked user, resulting in access to the protected network.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2023-11-01T17:10:33.630Z

Updated: 2024-08-02T09:05:36.229Z

Reserved: 2022-10-27T18:47:50.373Z

Link: CVE-2023-20264

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2023-11-01T18:15:09.757

Modified: 2024-01-25T17:15:42.220

Link: CVE-2023-20264

cve-icon Redhat

No data.