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V-216135

CAT II (Medium)

The system must not respond to broadcast ICMP echo requests.

Rule ID

SV-216135r603268_rule

STIG

Solaris 11 x86 Security Technical Implementation Guide

Version

V2R10

CCIs

SV-61053

Discussion

ICMP echo requests can be useful for reconnaissance of systems and for denial of service attacks.

Check Content

Determine if ICMP echo requests response is disabled.

# ipadm show-prop -p _respond_to_echo_broadcast -co current ip

If the output of this command is not "0", this is a finding.

Fix Text

The Network Management profile is required.

Disable respond to echo broadcast.

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