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5.3Medium

Cisco Secure Firewall Management Center

CVE-2020-3315

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.

What this means for your business

  • It affects Cisco Secure Firewall Management Center. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.

What to do

  1. 1Check whether your company or your suppliers run Cisco Secure Firewall Management Center, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposedBook a call

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