Vulnerability · Published May 6, 2020 · Assigned by cisco
CVE-2020-3315Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability
Medium 5.8
In plain English
A medium-severity security flaw in Cisco Firepower Threat Defense Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities).
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | snort | no fix listed | UBUNTU-CVE-2020-3315 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | n/a |
Weakness: CWE-693 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
References
- 20200506 Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability vendor-advisory
- [debian-lts-announce] 20230210 [SECURITY] [DLA 3317-1] snort security update mailing-list
- DSA-5354 vendor-advisory