The operating system must provide a near real-time alert when any of the organization defined list of compromise or potential compromise indicators occurs.

From Red Hat Enterprise Linux 6 Security Technical Implementation Guide

Associated with: CCI-001263

SV-50501r2_rule The operating system must provide a near real-time alert when any of the organization defined list of compromise or potential compromise indicators occurs.

Vulnerability discussion

By default, AIDE does not install itself for periodic execution. Periodically running AIDE may reveal unexpected changes in installed files.

Check content

To determine that periodic AIDE execution has been scheduled, run the following command: # grep aide /etc/crontab /etc/cron.*/* If there is no output, this is a finding.

Fix text

AIDE should be executed on a periodic basis to check for changes. To implement a daily execution of AIDE at 4:05am using cron, add the following line to /etc/crontab: 05 4 * * * root /usr/sbin/aide --check AIDE can be executed periodically through other means; this is merely one example.

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