The 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-12021	GEN005480	SV-38894r1_rule	ECSC-1	Medium

Description
Unintentionally running a syslog server that accepts 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
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2018-09-18

Details

Check Text ( C-37890r1_chk )
Verify syslogd is running with the -R option. #ps -ef | grep syslogd | grep -v grep If the -R option is not present, this is a finding.

Fix Text (F-33141r1_fix)
Change the syslogd arguments in the src subsystem control and restart the syslogd daemon. # chssys -s syslogd -a '-R' # stopsrc -s syslogd # startsrc -s syslogd