The audit system must be configured to audit account modification.

From Red Hat Enterprise Linux 5 Security Technical Implementation Guide

Associated with IA controls: ECAT-1

Associated with: CCI-001403

SV-26520r1_rule The audit system must be configured to audit account modification.

Vulnerability discussion

If the system is not configured to audit certain activities and write them to an audit log, it is more difficult to detect and track system compromises and damages incurred during a system compromise.

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Configure execute auditing of the usermod and groupmod executables. Add the following to the audit.rules file: -w /usr/sbin/usermod -p x -k usermod -w /usr/sbin/groupmod -p x -k groupmod Configure append auditing of the passwd, shadow, group, and gshadow files. Add the following to the audit.rules file: -w /etc/passwd -p w -k passwd -w /etc/shadow -p w -k shadow -w /etc/group -p w -k group -w /etc/gshadow -p w -k gshadow Restart the auditd service.

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