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6.1

CVE-2020-3558: A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page....

CVE-2020-3558 · published 6 years ago
Summary

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacke...

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
cisco secure_firewall_management_center >= 6.2.0, <= 6.2.3.16
>= 6.3.0, <= 6.3.0.5
>= 6.4.0, <= 6.4.0.9
>= 6.5.0, <= 6.5.0.4
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
Original advisory text
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page....
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by intercepting an HTTP request from a user. A successful exploit could allow the attacker to modify the HTTP request to cause the interface to redirect the user to a specific, malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
6.1 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-601Open Redirect
Timeline
Published21 Oct 2020
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2020-3558 · NVD
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