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 entries containing information to establish what type of events occurred.

DISA Rule

SV-234135r611405_rule

Vulnerability Number

V-234135

Group Title

SRG-NET-000074-FW-000009

Rule Version

FNFG-FW-000020

Severity

CAT II

CCI(s)

• CCI-000130 - Ensure that audit records containing information that establishes what type of event occurred.

Weight

10

Fix Recommendation

This fix can be performed on the FortiGate GUI or on the CLI.
Log in to the FortiGate GUI with Super-Admin privilege.

1. Click Log and Report.
2. Click Log Settings.
3. Click All for the Event Logging and Local Traffic Log options (for most verbose logging), or Click Customize and choose granular logging options to meet organization needs.
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. For each policy, configure Logging Options to log All Sessions (for most verbose logging).
4. Confirm each created Policy is Enabled.
5. Click OK.

or

1. Open a CLI console.
2. Run the following command:
# config log eventfilter
# set event enable
# set system enable
# set endpoint enable
# set user enable
# set security-rating enable
# end
# config firewall policy
# edit 0
# set srcintf {interface_name_1}
# set dstintf {interface_name_2}
# set srcaddr {address_a}
# set dstaddr {address_b}
# set schedule {always}
# set service {service required by site policy}
# set action {accept}
# set logtraffic enable
# next
# end

The {} indicate the object is defined by the organization policy.

Check Contents

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

1. Click Log and Report.
2. Click Local Traffic.
3. Verify events are generated containing date, time, alert level related to System and Local Traffic Log.

In addition to System log settings, verify that individual firewall policies are configured with 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).

If there are no events generated containing date, time, alert level, user, message type, and other information, this is a finding.

Vulnerability Number

V-234135

Documentable

False

Rule Version

FNFG-FW-000020

Severity Override Guidance

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

1. Click Log and Report.
2. Click Local Traffic.
3. Verify events are generated containing date, time, alert level related to System and Local Traffic Log.

In addition to System log settings, verify that individual firewall policies are configured with 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).

If there are no events generated containing date, time, alert level, user, message type, and other information, this is a finding.

Check Content Reference

M

Target Key

5258