CVE-2024-20331
MEDIUMDescription
A vulnerability in the session authentication functionality of the Remote Access SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to prevent users from authenticating. This vulnerability is due to insufficient entropy in the authentication process. An attacker could exploit this vulnerability by determining the handle of an authenticating user and using it to terminate their authentication session. A successful exploit could allow the attacker to force a user to restart the authentication process, preventing a legitimate user from establishing remote access VPN sessions.
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CVSS v3.1 Score
6.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness Type (CWE)
CWE-330
CWE-330
CWE-331
CWE-331
Affected Products
| Vendor | Product |
|---|---|
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | adaptive_security_appliance_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
| cisco | firepower_threat_defense_software |
References
Advisories & Patches
Frequently Asked Questions
What is CVE-2024-20331? +
A vulnerability in the session authentication functionality of the Remote Access SSL VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to prevent users from authenticating.
This vulnerability is due to insufficient entropy in the authentication process. An attacker could exploit this vulnerability by determining the handle of an authenticating user and using it to terminate their authentication session. A successful exploit could allow the attacker to force a user to restart the authentication process, preventing a legitimate user from establishing remote access VPN sessions. It has a CVSS v3.1 base score of 6.8 (MEDIUM).
How severe is CVE-2024-20331? +
CVE-2024-20331 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-20331? +
CVE-2024-20331 affects products from cisco, specifically: adaptive_security_appliance_software, firepower_threat_defense_software. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-20331? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.
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