The system must not respond to ICMP broadcast timestamp requests.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-216370	SOL-11.1-050030	SV-216370r603267_rule		Low

Description
By accurately determining the system's clock state, an attacker can more effectively attack certain time-based pseudorandom number generators (PRNGs) and the authentication systems that rely on them.

STIG	Date
Solaris 11 SPARC Security Technical Implementation Guide	2021-11-23

Details

Check Text ( C-17606r371198_chk )
Determine if response to ICMP broadcast timestamp requests is disabled. # ipadm show-prop -p _respond_to_timestamp_broadcast -co current ip If the output of this command is not "0", this is a finding.

Fix Text (F-17604r371199_fix)
The Network Management profile is required. Disable respond to timestamp broadcasts. # pfexec ipadm set-prop -p _respond_to_timestamp_broadcast=0 ip