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The operating system must automatically audit account termination.


Overview

Finding ID Version Rule ID IA Controls Severity
V-208890 OL6-00-000177 SV-208890r793675_rule Low
Description
In addition to auditing new user and group accounts, these watches will alert the system administrator(s) to any modifications. Any unexpected users, groups, or modifications should be investigated for legitimacy.
STIG Date
Oracle Linux 6 Security Technical Implementation Guide 2021-12-03

Details

Check Text ( C-9143r357650_chk )
To determine if the system is configured to audit account changes, run the following command:

$sudo egrep -w '(/etc/passwd|/etc/shadow|/etc/group|/etc/gshadow|/etc/security/opasswd)' /etc/audit/audit.rules

If the system is configured to watch for account changes, lines should be returned for each file specified (and with "-p wa" for each).

If the system is not configured to audit account changes, this is a finding.
Fix Text (F-9143r357651_fix)
Add the following to "/etc/audit/audit.rules", in order to capture events that modify account changes:

# audit_account_changes
-w /etc/group -p wa -k audit_account_changes
-w /etc/passwd -p wa -k audit_account_changes
-w /etc/gshadow -p wa -k audit_account_changes
-w /etc/shadow -p wa -k audit_account_changes
-w /etc/security/opasswd -p wa -k audit_account_changes