GCP Security Command Center - Detect Firewall rules allowing unrestricted high-risk ports
This query detects GCP Firewall rules that allow unrestricted (0.0.0.0/0) ingress to high-risk ports using Google Cloud Security Command Center OPEN_FIREWALL findings. Publicly exposed management, database, and…
Description
This query detects GCP Firewall rules that allow unrestricted (0.0.0.0/0) ingress to high-risk ports using Google Cloud Security Command Center OPEN_FIREWALL findings. Publicly exposed management, database, and service ports (e.g., RDP 3389, SSH 22, SQL 1433/3306) significantly increase the risk of brute-force attacks, exploitation, and lateral movement.
Detection logic
Detection requirements
- Platform
- ContainersESXiIaaSLinuxmacOSNetwork DevicesWindows
The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.
- Log source product
- googlesccdefinition
- Log source service
- googlecloudscc
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- f4f92ca4-6ebe-4f2a-90e5-b0d04b709651
- Tagged by the source as
- DiscoveryInitialAccessLateralMovement
Licence
- Published under
- MIT LicenseRead the licence
- Attribution
- Required
- Obtained under
- MITRead the origin licence
Authorship
- Published
- Sep 1, 2026
- Version
- 1