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

The FortiGate firewall must apply egress filters to traffic outbound from the network through any internal interface.

DISA Rule

SV-234153r852963_rule

Vulnerability Number

V-234153

Group Title

SRG-NET-000364-FW-000032

Rule Version

FNFG-FW-000120

Severity

CAT II

CCI(s)

• CCI-002403 - Only allow incoming communications from organization-defined authorized sources routed to organization-defined authorized destinations.

Weight

10

Fix Recommendation

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

1. Click the Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Click +Create New.
4. Name the policy and select Incoming and Outgoing Interfaces.
5. Create the policies with authorized sources and destinations.
6. Create the policies with Action set to either DENY or ACCEPT.
7. Ensure the Enable this policy is toggled to right.
8. Click OK.

Check Contents

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

1. Click the Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify the policies are configured for each Outgoing Interface.
4. Verify polices are configured with Action set either to DENY or ACCEPT based on the organizational requirement.

If the Firewall Policies are not applied to all outbound interfaces, this is a finding.

Vulnerability Number

V-234153

Documentable

False

Rule Version

FNFG-FW-000120

Severity Override Guidance

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

1. Click the Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify the policies are configured for each Outgoing Interface.
4. Verify polices are configured with Action set either to DENY or ACCEPT based on the organizational requirement.

If the Firewall Policies are not applied to all outbound interfaces, this is a finding.

Check Content Reference

M

Target Key

5258