RHEL 7 STIG Update - RHEL-07-030710 - Rule Update

[mrabe142]

As part of the latest RHEL 7 STIG update referenced in https://github.com/ComplianceAsCode/content/issues/3370, a rule has been updated in the current version. Information about the rule change is outlined below:

Rule Metadata

Red Hat Enterprise Linux 7 Security Technical Implementation Guide :: Release: 1 Benchmark Date: 27 Jul 2018 Vuln ID: V-72165 Rule ID: SV-86789r4_rule STIG ID: RHEL-07-030710
Severity: CAT II Check Reference: M Classification: Unclass

New Rule Title

Rule Title: The Red Hat Enterprise Linux operating system must audit all uses of the newgrp command.

Previous Check + Fix Content

Check Text: Verify the operating system generates audit records when successful/unsuccessful attempts to use the "newgrp" command occur.

Check for the following system call being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules":

# grep -i /usr/bin/newgrp /etc/audit/audit.rules

-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change

If the command does not return any output, this is a finding.

Fix Text: Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "newgrp" command occur.

Add or update the following rule in "/etc/audit/rules.d/audit.rules":

-a always,exit -F path=/usr/bin/newgrp -F perm=x -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change

The audit daemon must be restarted for the changes to take effect.

New Check + Fix Content

Check Text: Verify the operating system generates audit records when successful/unsuccessful attempts to use the "newgrp" command occur.

Check that the following system call is being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules":

# grep -i /usr/bin/newgrp /etc/audit/audit.rules

-a always,exit -F path=/usr/bin/newgrp -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change

If the command does not return any output, this is a finding.

Fix Text: Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "newgrp" command occur.

Add or update the following rule in "/etc/audit/rules.d/audit.rules":

-a always,exit -F path=/usr/bin/newgrp -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change

The audit daemon must be restarted for the changes to take effect.

Noted Differences

• New Rule Title
• Removed the perm option from the audit rule check text
• Removed the perm option form the audit rule fix text

[redhatrises]

-F perm=x is missing. Meaning you will only be auditing if someone reads the file.