The operating system must audit all account modifications.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-203666	SRG-OS-000239	SRG-OS-000239-GPOS-00089	SV-203666r991551_rule	2024-12-04	3

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 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.

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 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.

ℹ️ Check
Verify the operating system automatically audits account modification. If it does not, this is a finding.

✔️ Fix
Configure the operating system to automatically audit account modification.