Successful/unsuccessful attempts to modify categories of information (e.g., classification levels) must generate audit records.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-77401	SLES-12-020630	SV-92097r2_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-000037-GPOS-00015, SRG-OS-000062-GPOS-00031, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215

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-000037-GPOS-00015, SRG-OS-000062-GPOS-00031, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215

STIG	Date
SLES 12 Security Technical Implementation Guide	2019-03-12

Details

Check Text ( C-76957r2_chk )
Verify audit records are generated when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. Check that the following command call is being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules": # sudo grep -i 'chcon' /etc/audit/audit.rules -a always,exit -F arch=b32 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod -a always,exit -F arch=b64 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod If command does not return any output, this is a finding.

Check Text ( C-76957r2_chk )

Verify audit records are generated when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur.

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

# sudo grep -i 'chcon' /etc/audit/audit.rules

-a always,exit -F arch=b32 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod
-a always,exit -F arch=b64 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod

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

Fix Text (F-84041r2_fix)
Configure the SUSE operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur. Add or update the following rule in the "/etc/audit/audit.rules" file: -a always,exit -F arch=b32 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod -a always,exit -F arch=b64 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod The audit daemon must be restarted for the changes to take effect. # sudo systemctl restart auditd.service

Fix Text (F-84041r2_fix)

Configure the SUSE operating system to generate audit records when successful/unsuccessful attempts to modify categories of information (e.g., classification levels) occur.

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

-a always,exit -F arch=b32 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod
-a always,exit -F arch=b64 path=/usr/bin/chcon -F perm=x -F auid>=500 -F auid!=4294967295 -k prim_mod

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

# sudo systemctl restart auditd.service