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

The FortiGate firewall must use filters that use packet headers and packet attributes, including source and destination IP addresses and ports.

DISA Rule

SV-234133r1137684_rule

Vulnerability Number

V-234133

Group Title

SRG-NET-000019-FW-000003

Rule Version

FNFG-FW-000005

Severity

CAT I

CCI(s)

• CCI-001414 - Enforce approved authorizations for controlling the flow of information between connected systems based on organization-defined information flow control policies.

Weight

10

Fix Recommendation

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

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Click +Create New to configure application specific policies, with Action set to ACCEPT.
4. Configure Logging Options to log All Sessions.
5. Confirm each Policy is Enabled.
6. Click OK.

or

1. Open a CLI console, via SSH or available from the GUI.
2. For IPv4 policy, run the following command:
# config firewall policy
# edit {policyid}
# set srcintf {interface_name_ext}
# set dstintf {interface_name_int}
# set srcaddr {address_a}
# set dstaddr {address_b}
# set schedule {always}
# set service {HTTPS}
# set action {accept}
# set logtraffic all
# end

For IPv6 policy, run the following command:
# config firewall policy6
# edit {policyid}
# set srcintf {interface_name_ext}
# set dstintf {interface_name_int}
# set srcaddr {address_a}
# set dstaddr {address_b}
# set schedule {always}
# set service {HTTPS}
# set action {accept}
# set logtraffic all
# end

The {} indicate the object is defined by the organization policy. The firewall performs IP integrity header checking on all incoming packets to verify if the protocol packet is a valid TCP, UDP, ICMP, SCTP, or GRE length. Stateful inspection is done to verify TCP SYN and FIN flags are set as needed.

Check Contents

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

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify there are no policies configured with source and destination interface set to "any", and source and destination address set to "all" and the Action set to ACCEPT.

If there are policies configured with source and destination interface set to "any", and source and destination address set to "all" and the Action set to ACCEPT, this is a finding.

Vulnerability Number

V-234133

Documentable

False

Rule Version

FNFG-FW-000005

Severity Override Guidance

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

1. Click Policy and Objects.
2. Click IPv4 or IPv6 Policy.
3. Verify there are no policies configured with source and destination interface set to "any", and source and destination address set to "all" and the Action set to ACCEPT.

If there are policies configured with source and destination interface set to "any", and source and destination address set to "all" and the Action set to ACCEPT, this is a finding.

Check Content Reference

M

Target Key

5258