CVE-2024-20331: medium-severity vulnerability in Cisco Adaptive Security Appliance (ASA) Software
Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Authentication DoS Vulnerability
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.7%
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Affected products
Cisco · Cisco Adaptive Security Appliance (ASA) SoftwareCisco · Cisco Firepower Threat Defense SoftwareRelated CVEs — Cisco Adaptive Security Appliance (ASA) Software
In the same product, most dangerous first.
CVE-2020-3452HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal VulnerabilityEPSS 100.0%KEVCVE-2020-3580MEDIUMCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting VulnerabilitiesEPSS 85.6%KEVCVE-2020-3259HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure VulnerabilityEPSS 71.5%KEVCVE-2024-20353HIGHCVE-2024-20353EPSS 69.8%KEVCVE-2023-20269MEDIUMCVE-2023-20269EPSS 26.6%KEVCVE-2024-20359MEDIUMCVE-2024-20359EPSS 18.8%KEV