STIGQter STIGQter: STIG Summary: VMware vSphere 6.7 Photon OS Security Technical Implementation Guide Version: 1 Release: 1 Benchmark Date: 09 Mar 2021:

The Photon operating system must not perform multicast packet forwarding.

DISA Rule

SV-239182r675354_rule

Vulnerability Number

V-239182

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

PHTN-67-000111

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

At the command line, execute the following command:

# for SETTING in $(/sbin/sysctl -aN --pattern "net.ipv[4|6].conf.(all|default|eth.*).mc_forwarding"); do sed -i -e "/^${SETTING}/d" /etc/sysctl.conf;echo $SETTING=0>>/etc/sysctl.conf; done

Check Contents

At the command line, execute the following command:

# /sbin/sysctl -a --pattern "net.ipv[4|6].conf.(all|default|eth.*).mc_forwarding"

Expected result:

net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.default.mc_forwarding = 0
net.ipv4.conf.eth0.mc_forwarding = 0
net.ipv6.conf.all.mc_forwarding = 0
net.ipv6.conf.default.mc_forwarding = 0
net.ipv6.conf.eth0.mc_forwarding = 0

If the output does not match the expected result, this is a finding.

Note: The number of "ethx" lines returned is dependent on the number of interfaces. Every "ethx" entry must be set to "0".

Vulnerability Number

V-239182

Documentable

False

Rule Version

PHTN-67-000111

Severity Override Guidance

At the command line, execute the following command:

# /sbin/sysctl -a --pattern "net.ipv[4|6].conf.(all|default|eth.*).mc_forwarding"

Expected result:

net.ipv4.conf.all.mc_forwarding = 0
net.ipv4.conf.default.mc_forwarding = 0
net.ipv4.conf.eth0.mc_forwarding = 0
net.ipv6.conf.all.mc_forwarding = 0
net.ipv6.conf.default.mc_forwarding = 0
net.ipv6.conf.eth0.mc_forwarding = 0

If the output does not match the expected result, this is a finding.

Note: The number of "ethx" lines returned is dependent on the number of interfaces. Every "ethx" entry must be set to "0".

Check Content Reference

M

Target Key

5323

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