The Red Hat Enterprise Linux operating system must take appropriate action when the audisp-remote buffer is full.

From Red Hat Enterprise Linux 7 Security Technical Implementation Guide

Associated with: CCI-001851

SV-95731r1_rule The Red Hat Enterprise Linux operating system must take appropriate action when the audisp-remote buffer is full.

Vulnerability discussion

Information stored in one location is vulnerable to accidental or incidental deletion or alteration.Off-loading is a common process in information systems with limited audit storage capacity.When the remote buffer is full, audit logs will not be collected and sent to the central log server.Satisfies: SRG-OS-000342-GPOS-00133, SRG-OS-000479-GPOS-00224

Check content

Verify the audisp daemon is configured to take an appropriate action when the internal queue is full: # grep "overflow_action" /etc/audisp/audispd.conf overflow_action = syslog If the "overflow_action" option is not "syslog", "single", or "halt", or the line is commented out, this is a finding.

Fix text

Edit the /etc/audisp/audispd.conf file and add or update the "overflow_action" option: overflow_action = syslog The audit daemon must be restarted for changes to take effect: # service auditd restart

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