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Check: GEN003602

HP-UX 11.31 STIG: GEN003602 (in versions v1 r19 through v1 r13)

Title

The system must not process Internet Control Message Protocol (ICMP) timestamp requests. (Cat III impact)

Discussion

The processing of ICMP timestamp requests increases the attack surface of the system.

Check Content

Verify the system does not respond to ICMP Timestamp requests. # ndd -get /dev/ip ip_respond_to_timestamp If the result is not 0, this is a finding.

Fix Text

Disable ICMP Timestamp responses on the system. # ndd -set /dev/ip ip_respond_to_timestamp 0 Edit /etc/rc.config.d/nddconf and add/set: TRANSPORT_NAME[x]=ip NDD_NAME[x]=ip_respond_to_timestamp NDD_VALUE[x]=0

Additional Identifiers

Rule ID: SV-35022r1_rule

Vulnerability ID: V-22409

Group Title: GEN003602

Expert Comments

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CCIs

CCIs tied to check.

Number	Definition
CCI-001551	The organization defines approved authorizations for controlling the flow of information between interconnected systems.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-4	Information Flow Enforcement