Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability (Cisco Cisco Firepower Threat Defense Software)
At a glance
- Source
- NVD
- EPSS
- EPSS 2.21 % · percentile 83 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured file policies on an affected system. The vulnerability is due to errors in how the Snort detection engine handles specific HTTP responses. An attacker could exploit this vulnerability by sending crafted HTTP packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured file policies and deliver a malicious payload to the protected network.
Weaknesses (CWE)
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 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| 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 · psirt@cisco.com (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-24586
- GCVE · GCVE-0-2020-3315
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:secure_firewall_management_center:2.9.14.4:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:2.9.15:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_management_center:2.9.16:*:*:*:*:*:*:*cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*< 6.6.0cpe:2.3:a:cisco:ios:15.2\(7\)e:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:16.11.2:*:*:*:*:*:*:*cpe:2.3:o:cisco:ios:17.3.1:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Firepower Threat Defense Software | affected n/a |
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 |