Detections
Analytics

GEN003603 - The system must not respond to ICMPv4 echoes sent to a broadcast address - dladm show-link

Information

Responding to broadcast Internet Control Message Protocol (ICMP) echoes facilitates network mapping and provides a vector for amplification attacks.

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

Solution

Configure the system to not respond to ICMP ECHO_REQUESTs sent to broadcast addresses.
# ndd -set /dev/ip ip_respond_to_echo_broadcast 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-227796r603266_rule, STIG-ID|GEN003603, STIG-Legacy|SV-26622, STIG-Legacy|V-22410, Vuln-ID|V-227796

Plugin: Unix

Control ID: 155921b4d89777b9e2ca62877453c678f289a6f5266bf195918da9b737530948