Detections
Analytics

1.126 SOL-11.1-050090

Information

The system must disable ICMP redirect messages.

GROUP ID: V-216376
RULE ID: SV-216376r959010

A malicious user can exploit the ability of the system to send ICMP redirects by continually sending packets to the system, forcing the system to respond with ICMP redirect messages, resulting in an adverse impact on the CPU performance of the system.

Solution

The Network Management profile is required.

If the version of Solaris is earlier than Solaris 11.2, disable send redirects for IPv4 and IPv6.

# pfexec ipadm set-prop -p _send_redirects=0 ipv4
# pfexec ipadm set-prop -p _send_redirects=0 ipv6

If the version of Solaris is Solaris 11.2 or later, disable send redirects for IPv4 and IPv6.

# pfexec ipadm set-prop -p send_redirects=off ipv4
# pfexec ipadm set-prop -p send_redirects=off ipv6

See Also

https://workbench.cisecurity.org/benchmarks/23765

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CAT|III, CCI|CCI-000366, Rule-ID|SV-216376r959010_rule, STIG-ID|SOL-11.1-050090, Vuln-ID|V-216376

Plugin: Unix

Control ID: 8991a558c097c6fb0523ac7b4849721cb14ec578a0311e4b14fe66b18aa360ce