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The Photon operating system must audit all account modifications.


Finding ID Version Rule ID IA Controls Severity
V-258868 PHTN-40-000204 SV-258868r933665_rule Medium
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 modify an existing account. Auditing account modification actions provides logging that can be used for forensic purposes. To address access requirements, many operating systems can be integrated with enterprise-level authentication/access/auditing mechanisms that meet or exceed access control policy requirements. Satisfies: SRG-OS-000239-GPOS-00089, SRG-OS-000303-GPOS-00120, SRG-OS-000467-GPOS-00211
VMware vSphere 8.0 vCenter Appliance Photon OS 4.0 Security Technical Implementation Guide 2023-10-29


Check Text ( C-62608r933663_chk )
At the command line, run the following command to verify an audit rule exists to audit account modifications:

# auditctl -l | grep -E "(/etc/passwd|/etc/shadow|/etc/group|/etc/gshadow)"

Expected result:

-w /etc/passwd -p wa -k passwd
-w /etc/shadow -p wa -k shadow
-w /etc/group -p wa -k group
-w /etc/gshadow -p wa -k gshadow

If the output does not match the expected result, 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-40-000016.
Fix Text (F-62517r933664_fix)
Navigate to and open:


Add or update the following lines:

-w /etc/passwd -p wa -k passwd
-w /etc/shadow -p wa -k shadow
-w /etc/group -p wa -k group
-w /etc/gshadow -p wa -k gshadow

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

# /sbin/augenrules --load

Note: An "audit.STIG.rules" file is provided with this guidance 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.