Cisco Firepower Threat Defense Software SSL/TLS Policy Bypass Vulnerability (Cisco Cisco Firepower Threat Defense Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.71 % Β· percentile 77 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the Secure Sockets Layer (SSL)/Transport Layer Security (TLS) protocol parser of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured policies. The vulnerability is due to improper parsing of specific attributes in a TLS packet header. An attacker could exploit this vulnerability by sending malicious TLS messages to the affected system. A successful exploit could allow the attacker to bypass the configured policies for the system, which could allow traffic to flow through without being inspected.
Weaknesses (CWE)
- CWE-693 β Protection Mechanism Failure
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | cisco |
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | NVD Β· psirt@cisco.com (Secondary) |
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | NVD Β· nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD Β· nvd@nist.gov (Primary) |
European references
- ENISA EUVD Β· EUVD-2019-10390
- GCVE Β· GCVE-0-2019-1833
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:secure_firewall_management_center:6.1.0:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:6.2.0:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:6.2.1:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:6.2.2:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:6.2.3:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco Β· Cisco Firepower Threat Defense Software | affected unspecified < n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST β attribution requested |
| ENISA EUVD | ENISA β reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain β this product uses data from the NVD API but is not endorsed or certified by the NVD |