Description
A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed (CRLF) injection attack against a user.
This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by persuading a user to click a crafted link while establishing a VPN session. A successful exploit could allow the attacker to execute arbitrary script code in the browser or access sensitive, browser-based information, including a valid SAML token. The attacker could then use the token to establish a remote access VPN session with the privileges of the affected user. Individual hosts and services behind the VPN headend would still need additional credentials for successful access.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cisco | Cisco Secure Client | 4.9.00086, 4.9.01095, 4.9.02028, 4.9.03047, 4.9.03049, 4.9.04043, 4.9.04053, 4.9.05042, 4.9.06037, 4.10.00093, 4.10.01075, 4.10.02086, 4.10.03104, 4.10.04065, 4.10.04071, 4.10.05085, 4.10.05095, 4.10.05111, 4.10.06079, 4.10.06090, 4.10.07061, 4.10.07062, 4.10.07073, 5.0.00238, 5.0.00529, 5.0.00556,… | — |
Advisories 1
- WID-SEC-2024-0565 Cisco Secure Client: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 6, 2024