Kernel core dumps must be disabled unless needed.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-216450	SOL-11.1-080080	SV-216450r603267_rule		Medium

Description
Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system. The kernel core dump process may increase the amount of time a system is unavailable due to a crash. Kernel core dumps can be useful for kernel debugging.

Description

Kernel core dumps may contain the full contents of system memory at the time of the crash. Kernel core dumps may consume a considerable amount of disk space and may result in denial of service by exhausting the available space on the target file system. The kernel core dump process may increase the amount of time a system is unavailable due to a crash. Kernel core dumps can be useful for kernel debugging.

STIG	Date
Solaris 11 SPARC Security Technical Implementation Guide	2020-12-08

Details

Check Text ( C-17686r371438_chk )
The root role is required. This check applies to the global zone only. Determine the zone that you are currently securing. # zonename If the command output is "global", this check applies. Verify savecore is not used. # dumpadm \| grep 'Savecore enabled' If the value is yes, this is a finding.

Fix Text (F-17684r371439_fix)
The root role is required. This action applies to the global zone only. Determine the zone that you are currently securing. # zonename If the command output is "global", this action applies. Disable savecore. # dumpadm -n