STIGQter: STIG Summary: Red Hat Enterprise Linux 7 Security Technical Implementation Guide Version: 3 Release: 3 Benchmark Date: 23 Apr 2021:

Network interfaces configured on the Red Hat Enterprise Linux operating system must not be in promiscuous mode.

DISA Rule

SV-204618r603261_rule

Vulnerability Number

V-204618

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

RHEL-07-040670

Severity

CAT II

CCI(s)

• CCI-000366 - The organization implements the security configuration settings.

Weight

10

Fix Recommendation

Configure network interfaces to turn off promiscuous mode unless approved by the ISSO and documented.

Set the promiscuous mode of an interface to off with the following command:

#ip link set dev <devicename> multicast off promisc off

Check Contents

Verify network interfaces are not in promiscuous mode unless approved by the ISSO and documented.

Check for the status with the following command:

# ip link | grep -i promisc

If network interfaces are found on the system in promiscuous mode and their use has not been approved by the ISSO and documented, this is a finding.

Vulnerability Number

V-204618

Documentable

False

Rule Version

RHEL-07-040670

Severity Override Guidance

Verify network interfaces are not in promiscuous mode unless approved by the ISSO and documented.

Check for the status with the following command:

# ip link | grep -i promisc

If network interfaces are found on the system in promiscuous mode and their use has not been approved by the ISSO and documented, this is a finding.

Check Content Reference

M

Target Key

2899

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