Cisco ASA and FTD Software Cryptographic TLS and SSL Driver Denial of Service Vulnerability (Cisco Cisco Adaptive Security Appliance (ASA) Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.46 % · percentile 84 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the cryptographic driver for Cisco Adaptive Security Appliance Software (ASA) and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reboot unexpectedly. The vulnerability is due to incomplete input validation of a Secure Sockets Layer (SSL) or Transport Layer Security (TLS) ingress packet header. An attacker could exploit this vulnerability by sending a crafted TLS/SSL packet to an interface on the targeted device. An exploit could allow the attacker to cause the device to reload, which will result in a denial of service (DoS) condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. A valid SSL or TLS session is required to exploit this vulnerability.
Weaknesses (CWE)
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | cisco |
| CVSS 3.1 | HIGH 8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | HIGH 8.6 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10430
- GCVE · GCVE-0-2019-1873
CERT-FR advisories
- CERTFR-2019-AVI-327 — Multiples vulnérabilités dans Cisco ASA et FTD · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:cisco:asa_5506-x_firmware:9.6\(4.16\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5506-x_firmware:9.8\(3.8\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5506h-x_firmware:9.6\(4.16\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5506h-x_firmware:9.8\(3.8\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5506w-x_firmware:9.6\(4.16\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5506w-x_firmware:9.8\(3.8\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5508-x_firmware:9.6\(4.16\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5508-x_firmware:9.8\(3.8\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5516-x_firmware:9.6\(4.16\):*:*:*:*:*:*:*cpe:2.3:o:cisco:asa_5516-x_firmware:9.8\(3.8\):*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Adaptive Security Appliance (ASA) Software | affected unspecified < 9.4.4.36 ; affected unspecified < 9.6.4.29 ; affected unspecified < 9.8.4.3 ; affected unspecified < 9.9.2.52 ; affected unspecified < 9.10.1.22 ; affected unspecified < 9.12.2 |
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 |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| 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 |