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GEN003610 - The system must not send IPv4 ICMP redirects - dladm show-link

Information

ICMP redirect messages are used by routers to inform hosts that a more direct route exists for a particular destination. These messages contain information from the system's route table that could reveal portions of the network topology.

NOTE: Nessus has provided the target output to assist in reviewing the benchmark to ensure target compliance.

Solution

Configure the system to not send IPv4 ICMP redirect messages.

Procedure:
# ndd -set /dev/ip ip_send_redirects 0

Also add this command to a system startup script.

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_SOL_10_x86_V2R4_STIG.zip

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-227803r603266_rule, STIG-ID|GEN003610, STIG-Legacy|SV-26632, STIG-Legacy|V-22417, Vuln-ID|V-227803

Plugin: Unix

Control ID: a6c2dc9d20e6c84cea007c283959e9ed5289e83892e2d94a774c3244f9740b5d