Check: PHTN-67-000112
VMware vSphere 6.7 Photon OS STIG:
PHTN-67-000112
(in versions v1 r6 through v1 r1)
Title
The Photon operating system must not perform IPv4 packet forwarding. (Cat II impact)
Discussion
Routing protocol daemons are typically used on routers to exchange network topology information with other routers. If this software is used when not required, system network information may be unnecessarily transmitted across the network.
Check Content
At the command line, execute the following command: # /sbin/sysctl -a --pattern "net.ipv4.ip_forward$" Expected result: net.ipv4.ip_forward = 0 If the system is intended to operate as a router, this is N/A. If the output does not match the expected result, this is a finding.
Fix Text
Open /etc/sysctl.conf with a text editor. Add or update the following line: net.ipv4.ip_forward = 0 Run the following command to load the new setting: # /sbin/sysctl --load
Additional Identifiers
Rule ID: SV-239183r816672_rule
Vulnerability ID: V-239183
Group Title: SRG-OS-000480-GPOS-00227
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
The organization implements the security configuration settings. |
Controls
Number | Title |
---|---|
CM-6 |
Configuration Settings |