STIGQter: STIG Summary: Intrusion Detection and Prevention Systems Security Requirements Guide Version: 3 Release: 4 Benchmark Date: 28 Oct 2025:

The IDPS must, for fragmented packets, either block the packets or properly reassemble the packets before inspecting and forwarding.

DISA Rule

SV-206921r383821_rule

Vulnerability Number

V-206921

Group Title

SRG-NET-000401

Rule Version

SRG-NET-000401-IDPS-00203

Severity

CAT II

CCI(s)

• CCI-001310 - Checks the validity of organization-defined information inputs to the system.

Weight

10

Fix Recommendation

Configure the IDPS to, for fragmented packets, either block the packets or properly reassemble the packets before inspecting and forwarding.

Check Contents

Verify the IDPS, for fragmented packets, either blocks the packets or properly reassembles the packets before inspecting and forwarding.

For fragmented packets, if the IDPS does not either block the packets or properly reassemble the packets before inspecting and forwarding, this is a finding.

Vulnerability Number

V-206921

Documentable

False

Rule Version

SRG-NET-000401-IDPS-00203

Severity Override Guidance

Verify the IDPS, for fragmented packets, either blocks the packets or properly reassembles the packets before inspecting and forwarding.

For fragmented packets, if the IDPS does not either block the packets or properly reassemble the packets before inspecting and forwarding, this is a finding.

Check Content Reference

M

Target Key

2918