STIGQter: STIG Summary: Fortinet FortiGate Firewall Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 05 Jan 2026:

The FortiGate firewall must generate traffic log records when attempts are made to send packets between security zones that are not authorized to communicate.

DISA Rule

SV-234161r611483_rule

Vulnerability Number

V-234161

Group Title

SRG-NET-000493-FW-000007

Rule Version

FNFG-FW-000165

Severity

CAT II

CCI(s)

• CCI-000172 - Generate audit records for the event types defined in AU-2 c that include the audit record content defined in AU-3.

Weight

10

Fix Recommendation

Log in to the FortiGate GUI with Super-Admin privilege.

1. Click Log and Report.
2. Click Log Settings.
3. Configure the Log Settings for Local Traffic Log to ALL.
4. Click Apply.

In addition to these log settings, configure individual firewall policies with the most suitable Logging Options.

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Click +Create New to configure organization specific policies, with Action set to DENY.
4. Configure Logging Options to log All Sessions (for most verbose logging).
5. Ensure Enable this policy is toggled to right.
6. Click Implicit Deny Policy.
7. Click Edit.
8. Select Log Violation Traffic.
9. Click OK.

Check Contents

Log in to the FortiGate GUI with Super-Admin privilege.

1. Click Log and Report.
2. Click Log Settings.
3. Verify the Log Settings for Event Logging and Local Traffic Log are configured to ALL.

In addition to System log settings, verify individual firewall policies are configured with the most suitable Logging Options.

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify all Policy rules are configured with Logging Options set to Log All Sessions (for most verbose logging).
4. Verify the Implicit Deny Policy is configured to Log Violation Traffic.

If the Traffic Log setting is not configured to ALL, and the Implicit Deny Policies are not configured to LOG VIOLATION TRAFFIC, this is a finding.

Vulnerability Number

V-234161

Documentable

False

Rule Version

FNFG-FW-000165

Severity Override Guidance

Log in to the FortiGate GUI with Super-Admin privilege.

1. Click Log and Report.
2. Click Log Settings.
3. Verify the Log Settings for Event Logging and Local Traffic Log are configured to ALL.

In addition to System log settings, verify individual firewall policies are configured with the most suitable Logging Options.

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify all Policy rules are configured with Logging Options set to Log All Sessions (for most verbose logging).
4. Verify the Implicit Deny Policy is configured to Log Violation Traffic.

If the Traffic Log setting is not configured to ALL, and the Implicit Deny Policies are not configured to LOG VIOLATION TRAFFIC, this is a finding.

Check Content Reference

M

Target Key

5258