CVE-2024-20331
Cisco Adaptive Security Appliance and Firepower Threat Defense Software VPN Authentication DoS Vulnerability
MEDIUM 6.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.68 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Analyzed
Description
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.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-18046
- GCVE · GCVE-0-2024-20331
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.5:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.1.7:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.8:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.14:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.15:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.17:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.20:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.24:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.26:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.28:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.33:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.35:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.38:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.2.45:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.8:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.11:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.14:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.16:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.18:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.21:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.26:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.3.29:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.3:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.7:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.8:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.10:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.12:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.15:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.17:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.20:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.22:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.25:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.26:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.29:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.32:*:*:*:*:*:*:*cpe:2.3:o:cisco:adaptive_security_appliance_software:9.8.4.33:*:*:*:*:*:*:*- +232 more
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Adaptive Security Appliance (ASA) Software | affected 9.12.3 ; affected 9.8.3 ; affected 9.12.1 ; affected 9.8.1 ; affected 9.12.2 ; affected 9.8.2.45 |
| Cisco · Cisco Firepower Threat Defense Software | affected 6.2.3.14 ; affected 6.4.0.1 ; affected 6.2.3.7 ; affected 6.2.3 ; affected 6.4.0.2 ; affected 6.2.3.9 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |