Canonical Ubuntu 20.04 LTS Security Technical Implementation Guide (STIG) V1R12
Rules and Groups employed by this XCCDF Profile
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Ensure auditd Collects Information on the Use of Privileged Commands - usermod
At a minimum, the audit system should collect the execution of privileged commands for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenrules</code> program...Rule Medium Severity -
Configure auditd Data Retention
The audit system writes data to <code>/var/log/audit/audit.log</code>. By default, <code>auditd</code> rotates 5 logs by size (6MB), retaining a maximum of 30MB of data in total, and refuses to wri...Group -
Configure audispd Plugin To Send Logs To Remote Server
Configure the audispd plugin to off-load audit records onto a different system or media from the system being audited. First, set the <code>active</code> option in <pre>/etc/audisp/plugins.d/au-re...Rule Medium Severity -
Configure a Sufficiently Large Partition for Audit Logs
The Ubuntu 20.04 operating system must allocate audit record storage capacity to store at least one weeks worth of audit records when audit records are not immediately sent to a central audit recor...Rule Medium Severity -
Configure auditd Disk Full Action when Disk Space Is Full
The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...Rule Medium Severity -
Configure auditd mail_acct Action on Low Disk Space
The <code>auditd</code> service can be configured to send email to a designated account in certain situations. Add or correct the following line in <code>/etc/audit/auditd.conf</code> to ensure tha...Rule Medium Severity -
Configure auditd space_left Action on Low Disk Space
The <code>auditd</code> service can be configured to take an action when disk space <i>starts</i> to run low. Edit the file <code>/etc/audit/auditd.conf</code>. Modify the following line, substitut...Rule Medium Severity -
Configure auditd space_left on Low Disk Space
The <code>auditd</code> service can be configured to take an action when disk space is running low but prior to running out of space completely. Edit the file <code>/etc/audit/auditd.conf</code>. A...Rule Medium Severity -
Offload audit Logs to External Media
The operating system must have a crontab script running weekly to offload audit events of standalone systems.Rule Medium Severity -
AppArmor
Many security vulnerabilities result from bugs in trusted programs. A trusted program runs with privileges that attackers want to possess. The program fails to keep that trust if there is a bug in ...Group
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