The system must not respond to ICMP timestamp requests.

From Solaris 11 X86 Security Technical Implementation Guide

Associated with: CCI-000366

SV-61041r1_rule The system must not respond to ICMP timestamp requests.

Vulnerability discussion

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.

Check content

Determine if ICMP time stamp responses are disabled. # ipadm show-prop -p _respond_to_timestamp -co current ip If the output of both commands is not "0", this is a finding.

Fix text

The Network Management profile is required. Disable source respond to timestamp. # pfexec ipadm set-prop -p _respond_to_timestamp=0 ip

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