Guide to the Secure Configuration of Ubuntu 20.04
Rules, Groups, and Values defined within the XCCDF Benchmark
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Sensible umask
Enter default user umaskValue -
Ensure the Default Bash Umask is Set Correctly
To ensure the default umask for users of the Bash shell is set properly, add or correct the <code>umask</code> setting in <code>/etc/bash.bashrc</code> to read as follows: <pre>umask <xccdf-1.2:sub...Rule Medium Severity -
Ensure the Default C Shell Umask is Set Correctly
To ensure the default umask for users of the C shell is set properly, add or correct the <code>umask</code> setting in <code>/etc/csh.cshrc</code> to read as follows: <pre>umask <xccdf-1.2:sub idre...Rule Medium Severity -
Ensure the Default Umask is Set Correctly in login.defs
To ensure the default umask controlled by <code>/etc/login.defs</code> is set properly, add or correct the <code>UMASK</code> setting in <code>/etc/login.defs</code> to read as follows: <pre>UMASK ...Rule Medium Severity -
Ensure the Default Umask is Set Correctly in /etc/profile
To ensure the default umask controlled by <code>/etc/profile</code> is set properly, add or correct the <code>umask</code> setting in <code>/etc/profile</code> to read as follows: <pre>umask <xccdf...Rule Medium Severity -
Ensure the Default Umask is Set Correctly For Interactive Users
Remove theUMASK
environment variable from all interactive users initialization files.Rule Medium Severity -
Appropriate Action Must be Setup When the Internal Audit Event Queue is Full
The audit system should have an action setup in the event the internal event queue becomes full. To setup an overflow action edit <code>/etc/audisp/auditd.conf</code>. Set <code>overflow_action</co...Rule Medium Severity -
Record Information on the Use of Privileged Commands
At a minimum, the audit system should collect the execution of privileged commands for all users and root.Group -
Ensure auditd Collects Information on the Use of Privileged Commands - chfn
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 -
Action for auditd to take when disk space just starts to run low
The setting for space_left_action in /etc/audit/auditd.confValue
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