Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Firepower Threat Defense | < 6.6.0 |
| Cisco | Secure Firewall Management Center | 2.9.14.4 |
| Cisco | Ios | 15.2\(7\)e |
| Cisco | 1100-4G Integrated Services Router | - |
| Cisco | 1100-6G Integrated Services Router | - |
| Cisco | 1100-Lte Integrated Services Router | - |
| Cisco | 1101 Integrated Services Router | - |
| Cisco | 1109 Integrated Services Router | - |
| Cisco | 1111X Integrated Services Router | - |
| Cisco | 111X Integrated Services Router | - |
| Cisco | 1120 Integrated Services Router | - |
| Cisco | 1160 Integrated Services Router | - |
| Cisco | 4221 Integrated Services Router | - |
| Cisco | 4331 Integrated Services Router | - |
| Cisco | 4431 Integrated Services Router | - |
| Cisco | 4461 Integrated Services Router | - |
| Cisco | Csr1000V | - |
| Cisco | Isa-3000-2C2F-K9 | - |
| Cisco | Isa-3000-4C-K9 | - |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory
- https://www.debian.org/security/2023/dsa-5354
- https://lists.debian.org/debian-lts-announce/2023/02/msg00011.html
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory
- https://www.debian.org/security/2023/dsa-5354
FAQ
What is CVE-2020-3315?
CVE-2020-3315 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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....
How severe is CVE-2020-3315?
CVE-2020-3315 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3315?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Firepower Threat Defense, Cisco Secure Firewall Management Center, Cisco Ios, Cisco 1100-4G Integrated Services Router, Cisco 1100-6G Integrated Services Router.