STIGQter STIGQter: STIG Summary: Solaris 10 X86 Security Technical Implementation Guide Version: 1 Release: 26 Benchmark Date: 24 Jan 2020: TCP backlog queue sizes must be set appropriately.

DISA Rule

SV-28639r2_rule

Vulnerability Number

V-23741

Group Title

GEN003601

Rule Version

GEN003601

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Procedure:
# ndd -set /dev/tcp tcp_conn_req_max_q0 1280
# ndd -set /dev/tcp tcp_conn_req_max_q 1024

Ensure these commands are also present in system startup scripts.

Check Contents

Determine the type of zone that you are currently securing.
# zonename

If the zone is not the global zone, determine if any interfaces are exclusive to the zone:
# dladm show-link

If the output indicates "insufficient privileges" then this requirement is not applicable.

If the zone is the global zone or the non-global zone has exclusive interfaces determine the network settings.

Procedure:
# ndd /dev/tcp tcp_conn_req_max_q0

If the returned value is not 1280 or greater, this is a finding.

Procedure:
# ndd /dev/tcp tcp_conn_req_max_q

If the returned value is not 1024, this is a finding.

Vulnerability Number

V-23741

Documentable

False

Rule Version

GEN003601

Severity Override Guidance

Determine the type of zone that you are currently securing.
# zonename

If the zone is not the global zone, determine if any interfaces are exclusive to the zone:
# dladm show-link

If the output indicates "insufficient privileges" then this requirement is not applicable.

If the zone is the global zone or the non-global zone has exclusive interfaces determine the network settings.

Procedure:
# ndd /dev/tcp tcp_conn_req_max_q0

If the returned value is not 1280 or greater, this is a finding.

Procedure:
# ndd /dev/tcp tcp_conn_req_max_q

If the returned value is not 1024, this is a finding.

Check Content Reference

M

Responsibility

System Administrator

Target Key

25

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