Rule ID
SV-216371r959010_rule
Version
V3R5
CCIs
By determining the netmasks of various computers in your network, an attacker can better map your subnet structure and infer trust relationships.
Determine if the response to address mask broadcast is disabled. # ipadm show-prop -p _respond_to_address_mask_broadcast -co current ip If the output of this command is not "0", this is a finding.
The Network Management profile is required. Disable responses to address mask broadcast. # pfexec ipadm set-prop -p _respond_to_address_mask_broadcast=0 ip