CVE-2024-20424

published 2024-10-23

CVE-2024-20424: A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software, formerly Firepower Management Center Software…

Priority P2 72 critical 9.9 CVSS 3.1

AV N AC L PR L UI N S C C H I H A H

A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software, formerly Firepower Management Center Software, could allow an authenticated, remote attacker to execute arbitrary commands on the underlying operating system as root.
This vulnerability is due to insufficient input validation of certain HTTP requests. An attacker could exploit this vulnerability by authenticating to the web-based management interface of an affected device and then sending a crafted HTTP request to the device. A successful exploit could allow the attacker to execute arbitrary commands with root permissions on the underlying operating system of the Cisco FMC device or to execute commands on managed Cisco Firepower Threat Defense (FTD) devices. To exploit this vulnerability, the attacker would need valid credentials for a user account with at least the role of Security Analyst (Read Only).

Affected

185 ranges · showing 25

Vendor	Product	Version range	Fixed in
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—
cisco	cisco_firepower_management_center	—	—

Detection & IOCs extracted from sources · hover to see the quote

• → Exploit vector is a crafted HTTP request sent to the web-based management interface of Cisco FMC after authenticating; monitor FMC web interface logs for anomalous or unexpected HTTP requests, especially from accounts holding the 'Security Analyst (Read Only)' role or higher. ↗
• → Alert on OS-level command execution (especially as root) originating from the FMC web server process, which would indicate successful exploitation of this command injection vulnerability. ↗
• → Audit and alert on activity from low-privilege accounts (Security Analyst Read Only and above) on the FMC web interface, as exploitation only requires this minimum privilege level. ↗
• → CVE-2024-20424 impacts any Cisco product running a vulnerable version of FMC regardless of device configuration — no specific configuration is required for exposure, so all FMC deployments should be treated as at-risk until patched. ↗

• · There are no workarounds available for CVE-2024-20424; the only remediation is applying Cisco's software updates. ↗
• · The vulnerability is triggered via the web-based management interface (HTTP), not via CLI or other vectors; ensure the management interface is not exposed to untrusted networks. ↗

CVSS provenance

nvd v3.1 9.9 CRITICAL CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

vendor_cisco 9.9 CRITICAL

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