CVE-2024-20337: CRLF Injection

First published: Wed Mar 06 2024(Updated: )

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.

Credit: ykramarz@cisco.com

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

• agent/type
• agent/description
• agent/first-publish-date
• agent/author
• collector/nvd-api
• source/NVD
• collector/the-register
• source/The Register
• alias/CVE-2024-21407
• alias/CVE-2024-21408
• alias/CVE-2024-21334
• alias/CVE-2024-21400
• alias/CVE-2023-32666
• alias/CVE-2023-32282
• alias/CVE-2024-2193
• alias/CVE-2023-20214
• alias/CVE-2024-20337
• alias/CVE-2024-0039
• alias/CVE-2024-23717
• alias/CVE-2023-42789
• alias/CVE-2023-42790
• alias/CVE-2023-48788
• alias/CVE-2023-47534
• alias/CVE-2023-36554
• alias/CVE-2024-23112
• alias/CVE-2023-46717
• agent/references
• agent/event
• agent/news-ai
• agent/severity
• agent/tags
• agent/weakness
• collector/mitre-cve
• source/MITRE
• agent/last-modified-date
• agent/trending