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5.3mediumMedium

CVE-2020-3315

Cisco Secure Firewall Management Center

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.

Exploitation status

  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, no account is needed.
  • Beyond that, no action by a user is required.

Scoring

CVSS
5.3 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-693
Assigned by
psirt@cisco.com

Dates

Published
2020-05-06
Last modified
2026-08-11
Sources
NVD

Affected products

  • Cisco Secure Firewall Management Center2.9.14.4, 2.9.15, 2.9.16
  • Cisco Secure Firewall Threat Defense- 6.6.0
  • Cisco Ios15.2\(7\)e, 16.11.2, 17.3.1
  • Cisco 1100-4g Integrated Services Routerall versions
  • Cisco 1100-6g Integrated Services Routerall versions
  • Cisco 1100-Lte Integrated Services Routerall versions
  • Cisco 1101 Integrated Services Routerall versions
  • Cisco 1109 Integrated Services Routerall versions
  • Cisco 1111x Integrated Services Routerall versions
  • Cisco 111x Integrated Services Routerall versions
  • Cisco 1120 Integrated Services Routerall versions
  • Cisco 1160 Integrated Services Routerall versions

As listed in the NVD configuration data. Not a statement about your estate.

References