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


Overview

Finding ID Version Rule ID IA Controls Severity
V-81019 RHEL-07-030210 SV-95731r1_rule Medium
Description
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
STIG Date
Red Hat Enterprise Linux 7 Security Technical Implementation Guide 2018-11-28

Details

Check Text ( C-80735r1_chk )
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 (F-87853r3_fix)
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