The SLES for vRealize must audit all account creations.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-239443	VROM-SL-000015	SV-239443r661780_rule		Medium

Description
Once an attacker establishes initial 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 simply create a new account. Auditing of account creation mitigates this risk. To address access requirements, many SLES for vRealize operating systems may be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements.

Description

Once an attacker establishes initial 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 simply create a new account. Auditing of account creation mitigates this risk. To address access requirements, many SLES for vRealize operating systems may be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements.

STIG	Date
VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide	2023-09-21

Details

Check Text ( C-42676r661778_chk )
Determine if execution of the useradd and groupadd executable are audited. # auditctl -l \| egrep '(useradd\|groupadd)' If either "useradd" or "groupadd" are not listed with a permissions filter of at least "x", this is a finding. Expected result: LIST_RULES: exit,always watch=/usr/sbin/useradd perm=x key=useradd LIST_RULES: exit,always watch=/usr/sbin/groupadd perm=x key=groupadd

Fix Text (F-42635r661779_fix)
Configure execute auditing of the "useradd" and "groupadd" executables run the DoD.script with the following command as root: # /etc/dodscript.sh OR Configure execute auditing of the "useradd" and "groupadd" executables. Add the following to /etc/audit/audit.rules: -w /usr/sbin/useradd -p x -k useradd -w /usr/sbin/groupadd -p x -k groupadd Restart the auditd service. # service auditd restart

Fix Text (F-42635r661779_fix)

Configure execute auditing of the "useradd" and "groupadd" executables run the DoD.script with the following command as root:

# /etc/dodscript.sh

OR

Configure execute auditing of the "useradd" and "groupadd" executables.

Add the following to /etc/audit/audit.rules:
-w /usr/sbin/useradd -p x -k useradd
-w /usr/sbin/groupadd -p x -k groupadd

Restart the auditd service.

# service auditd restart