CVE Vulnerabilities

CVE-2020-3315

Protection Mechanism Failure

Published: May 06, 2020 | Modified: Aug 11, 2026
CVSS 3.x
5.3
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
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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.

Weakness

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Affected Software

NameVendorStart VersionEnd Version
Secure_firewall_management_centerCisco2.9.14.4 (including)2.9.14.4 (including)
Secure_firewall_management_centerCisco2.9.15 (including)2.9.15 (including)
Secure_firewall_management_centerCisco2.9.16 (including)2.9.16 (including)
Secure_firewall_threat_defenseCisco*6.6.0 (excluding)
SnortUbuntubionic*
SnortUbuntuesm-apps-legacy/xenial*
SnortUbuntuesm-apps/bionic*
SnortUbuntuesm-apps/focal*
SnortUbuntuesm-apps/jammy*
SnortUbuntuesm-apps/xenial*
SnortUbuntuesm-infra-legacy/trusty*
SnortUbuntufocal*
SnortUbuntuimpish*
SnortUbuntujammy*
SnortUbuntukinetic*
SnortUbuntulunar*
SnortUbuntumantic*
SnortUbuntutrusty/esm*
SnortUbuntuupstream*

References