VDB
CVE-2021-1494
CVE-2021-1494
PUBLISHED
CVSS 5.800000190734863 MEDIUM
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of specific HTTP header parameters. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass a configured file policy for HTTP packets and deliver a malicious payload.
EPSS 1.10% · 65.1th percentile
Risk Scores
CVSS 3.1
5.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
EPSS Score
1.10%
65.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | snort | 2.9.7.0-5, 2.9.7.0-5build1, 0 |
| Ubuntu:22.04:LTS | snort | 2.9.15.1-5, 2.9.15.1-6build1, 2.9.15.1-6 |
| Ubuntu:14.04:LTS | snort | 2.9.2.2-3, 2.9.6.0-0ubuntu1, 2.9.5.3-3 |
| Ubuntu:16.04:LTS | snort | 0, 2.9.7.0-5 |
| Ubuntu:20.04:LTS | snort | 0, 2.9.7.0-5build1 |
| Ubuntu:24.04:LTS | snort | 2.9.15.1-6build1, 2.9.20-0+deb11u1ubuntu1, 0 |
Timeline
- Nov 15, 2024 CVE Published
- Nov 15, 2024 CVE Updated
- Nov 16, 2024 EPSS Score
- Dec 5, 2024 EPSS Score
- Dec 24, 2024 EPSS Score
- Jan 11, 2025 EPSS Score
- Jan 29, 2025 EPSS Score
- Feb 17, 2025 EPSS Score
- Mar 7, 2025 EPSS Score
- Mar 25, 2025 EPSS Score
- Apr 12, 2025 EPSS Score
- May 1, 2025 EPSS Score
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-http-fp-bp-KfDdcQhc third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-1494 third-party-advisory
- https://ubuntu.com/security/CVE-2021-1494 advisory