A vulnerability in the implementation of SAML 2.0 single sign-on (SSO) for remote access VPN services in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to successfully establish a VPN session on an affected device. This vulnerability is due to improper separation of authorization domains when using SAML authentication. An attacker could exploit this vulnerability by using valid credentials to successfully authenticate using their designated connection profile (tunnel group), intercepting the SAML SSO token that is sent back from the Cisco ASA device, and then submitting the same SAML SSO token to a different tunnel group for authentication. A successful exploit could allow the attacker to establish a remote access VPN session using a connection profile that they are not authorized to use and connect to secured networks behind the affected device that they are not authorized to access. For successful exploitation, the attacker must have valid remote access VPN user credentials.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: cisco
Published: 2024-05-22T16:54:35.619Z
Updated: 2024-08-01T21:59:42.284Z
Reserved: 2023-11-08T15:08:07.648Z
Link: CVE-2024-20355
Vulnrichment
Updated: 2024-08-01T21:59:42.284Z
NVD
Status : Awaiting Analysis
Published: 2024-05-22T17:16:13.477
Modified: 2024-05-22T18:59:20.240
Link: CVE-2024-20355
Redhat
No data.