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

The Red Hat Enterprise Linux operating system must initiate an action to notify the System Administrator (SA) and Information System Security Officer ISSO, at a minimum, when allocated audit record storage volume reaches 75% of the repository maximum audit record storage capacity.

DISA Rule

SV-204513r603261_rule

Vulnerability Number

V-204513

Group Title

SRG-OS-000343-GPOS-00134

Rule Version

RHEL-07-030330

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the operating system to initiate an action to notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.

Check the system configuration to determine the partition the audit records are being written to:

# grep -iw log_file /etc/audit/auditd.conf

Determine the size of the partition that audit records are written to (with the example being "/var/log/audit/"):

# df -h /var/log/audit/

Set the value of the "space_left" keyword in "/etc/audit/auditd.conf" to 25 percent of the partition size.

Check Contents

Verify the operating system initiates an action to notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.

Check the system configuration to determine the partition the audit records are being written to with the following command:

# grep -iw log_file /etc/audit/auditd.conf
log_file = /var/log/audit/audit.log

Check the size of the partition that audit records are written to (with the example being "/var/log/audit/"):

# df -h /var/log/audit/
0.9G /var/log/audit

If the audit records are not being written to a partition specifically created for audit records (in this example "/var/log/audit" is a separate partition), determine the amount of space other files in the partition are currently occupying with the following command:

# du -sh <partition>
1.8G /var

Determine what the threshold is for the system to take action when 75 percent of the repository maximum audit record storage capacity is reached:

# grep -iw space_left /etc/audit/auditd.conf
space_left = 225

If the value of the "space_left" keyword is not set to 25 percent of the total partition size, this is a finding.

Vulnerability Number

V-204513

Documentable

False

Rule Version

RHEL-07-030330

Severity Override Guidance

Verify the operating system initiates an action to notify the SA and ISSO (at a minimum) when allocated audit record storage volume reaches 75 percent of the repository maximum audit record storage capacity.

Check the system configuration to determine the partition the audit records are being written to with the following command:

# grep -iw log_file /etc/audit/auditd.conf
log_file = /var/log/audit/audit.log

Check the size of the partition that audit records are written to (with the example being "/var/log/audit/"):

# df -h /var/log/audit/
0.9G /var/log/audit

If the audit records are not being written to a partition specifically created for audit records (in this example "/var/log/audit" is a separate partition), determine the amount of space other files in the partition are currently occupying with the following command:

# du -sh <partition>
1.8G /var

Determine what the threshold is for the system to take action when 75 percent of the repository maximum audit record storage capacity is reached:

# grep -iw space_left /etc/audit/auditd.conf
space_left = 225

If the value of the "space_left" keyword is not set to 25 percent of the total partition size, this is a finding.

Check Content Reference

M

Target Key

2899

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