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The AIX syslog daemon must not accept remote messages unless it is a syslog server documented using site-defined procedures.


Overview

Finding ID Version Rule ID IA Controls Severity
V-215313 AIX7-00-002132 SV-215313r508663_rule Medium
Description
Unintentionally running a syslog server accepting remote messages puts the system at increased risk. Malicious syslog messages sent to the server could exploit vulnerabilities in the server software itself, could introduce misleading information in to the system's logs, or could fill the system's storage leading to a Denial of Service.
STIG Date
IBM AIX 7.x Security Technical Implementation Guide 2022-06-06

Details

Check Text ( C-16511r294390_chk )
Verify "syslogd" is running with the "-R" option using command:
# ps -ef | grep syslogd | grep -v grep

The above command should yield the following output:
root 4063356 3342368 0 Sep 11 - 0:01 /usr/sbin/syslogd -R

If the "-R" option is not present with the syslogd process, this is a finding.
Fix Text (F-16509r294391_fix)
Change the "syslogd" arguments in the src subsystem control and restart the "syslogd" daemon using the following commands:
# chssys -s syslogd -a '-R'
# stopsrc -s syslogd
# startsrc -s syslogd