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The system must not respond to ICMP broadcast timestamp requests.


Overview

Finding ID Version Rule ID IA Controls Severity
V-216133 SOL-11.1-050030 SV-216133r603268_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 X86 Security Technical Implementation Guide 2021-11-23

Details

Check Text ( C-17371r372781_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-17369r372782_fix)
The Network Management profile is required.

Disable respond to timestamp broadcasts.

# pfexec ipadm set-prop -p _respond_to_timestamp_broadcast=0 ip