1.1.12 Ensure separate partition exists for /var/log/audit

Information

There are two important reasons to ensure that data gathered by auditd is stored on a separate partition- protection against resource exhaustion (since the audit.log file can
grow quite large) and protection of audit data. The audit daemon calculates how much free space is left and performs actions based on the results. If other processes (such as syslog)
consume space in the same partition as auditd, it may not perform as desired.

Solution

For new installations, during installation create a custom partition setup and specify a separate partition for /var/log/audit.For systems that were previously installed, create a new partition and configure /etc/fstab as appropriate.

See Also

https://workbench.cisecurity.org/files/1863

Item Details

Category: AUDIT AND ACCOUNTABILITY

References: 800-53|AU-4, CSCv6|6.3

Plugin: Unix

Control ID: 8a17799ec61a29605fd8ec0472901f111edf18992c17ab37207d457cfd61b14e