The Photon operating system must audit all account creations.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-256478	PHTN-30-000001	SV-256478r887108_rule		Medium

Description
Once an attacker establishes access to a system, the attacker often attempts to create a persistent method of reestablishing access. One way to accomplish this is for the attacker to create an account. Auditing account creation actions provides logging that can be used for forensic purposes.

STIG	Date
VMware vSphere 7.0 vCenter Appliance Photon OS Security Technical Implementation Guide	2023-02-21

Details

Check Text ( C-60153r887106_chk )
At the command line, run the following command: # auditctl -l \| grep -E "(useradd\|groupadd)" Expected result: -w /usr/sbin/useradd -p x -k useradd -w /usr/sbin/groupadd -p x -k groupadd If either "useradd" or "groupadd" are not listed with a permissions filter of at least "x", this is a finding. Note: This check depends on the "auditd" service to be in a running state for accurate results. The "auditd" service is enabled in control PHTN-30-000013.

Check Text ( C-60153r887106_chk )

At the command line, run the following command:

# auditctl -l | grep -E "(useradd|groupadd)"

Expected result:

-w /usr/sbin/useradd -p x -k useradd
-w /usr/sbin/groupadd -p x -k groupadd

If either "useradd" or "groupadd" are not listed with a permissions filter of at least "x", this is a finding.

Note: This check depends on the "auditd" service to be in a running state for accurate results. The "auditd" service is enabled in control PHTN-30-000013.

Fix Text (F-60096r887107_fix)
Navigate to and open: /etc/audit/rules.d/audit.STIG.rules Add or update the following lines: -w /usr/sbin/useradd -p x -k useradd -w /usr/sbin/groupadd -p x -k groupadd At the command line, run the following command to load the new audit rules: # /sbin/augenrules --load Note: A new "audit.STIG.rules" file is provided for placement in "/etc/audit/rules.d" that contains all rules needed for auditd. Note: An older "audit.STIG.rules" may exist and may reference older "GEN" SRG IDs. This file can be removed and replaced as necessary with an updated one.

Fix Text (F-60096r887107_fix)

Navigate to and open:

/etc/audit/rules.d/audit.STIG.rules

Add or update the following lines:

-w /usr/sbin/useradd -p x -k useradd
-w /usr/sbin/groupadd -p x -k groupadd

At the command line, run the following command to load the new audit rules:

# /sbin/augenrules --load

Note: A new "audit.STIG.rules" file is provided for placement in "/etc/audit/rules.d" that contains all rules needed for auditd.

Note: An older "audit.STIG.rules" may exist and may reference older "GEN" SRG IDs. This file can be removed and replaced as necessary with an updated one.