The Red Hat Enterprise Linux operating system must audit all uses of the chcon command.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-72139	RHEL-07-030580	SV-86763r4_rule		Medium

Description
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209

Description

Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter). Satisfies: SRG-OS-000392-GPOS-00172, SRG-OS-000463-GPOS-00207, SRG-OS-000465-GPOS-00209

STIG	Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide	2018-11-28

Details

Check Text ( C-72371r5_chk )
Verify the operating system generates audit records when successful/unsuccessful attempts to use the "chcon" command occur. Check the file system rule in "/etc/audit/audit.rules" with the following command: # grep -i /usr/bin/chcon /etc/audit/audit.rules -a always,exit -F path=/usr/bin/chcon -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change If the command does not return any output, this is a finding.

Check Text ( C-72371r5_chk )

Verify the operating system generates audit records when successful/unsuccessful attempts to use the "chcon" command occur.

Check the file system rule in "/etc/audit/audit.rules" with the following command:

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

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

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

Fix Text (F-78491r6_fix)
Configure the operating system to generate audit records when successful/unsuccessful attempts to use the "chcon" command occur. Add or update the following rule in "/etc/audit/rules.d/audit.rules": -a always,exit -F path=/usr/bin/chcon -F auid>=1000 -F auid!=4294967295 -k privileged-priv_change The audit daemon must be restarted for the changes to take effect.