SV-227802r603266_rule
V-227802
SRG-OS-000480
GEN003609
CAT II
10
Configure the system to not accept IPv4 ICMP redirect messages.
Procedure:
# ndd -set /dev/ip ip_ignore_redirect 1
This command must also be added to a system startup script.
Determine the type of zone that you are currently securing.
# zonename
If the zone is not the global zone, determine if any interfaces are exclusive to the zone:
# dladm show-link
If the output indicates "insufficient privileges" then this requirement is not applicable.
If the zone is the global zone or the non-global zone has exclusive interfaces verify the system does not accept IPv4 ICMP redirect messages.
Procedure:
# ndd -get /dev/ip ip_ignore_redirect
If the result is not 1, this is a finding.
V-227802
False
GEN003609
Determine the type of zone that you are currently securing.
# zonename
If the zone is not the global zone, determine if any interfaces are exclusive to the zone:
# dladm show-link
If the output indicates "insufficient privileges" then this requirement is not applicable.
If the zone is the global zone or the non-global zone has exclusive interfaces verify the system does not accept IPv4 ICMP redirect messages.
Procedure:
# ndd -get /dev/ip ip_ignore_redirect
If the result is not 1, this is a finding.
M
4061