The system must be configured to only boot from the system boot device.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-1013	GEN008600	SV-38835r1_rule	ECSC-1	High

Description
The ability to boot from removable media is the same as being able to boot into single user, or maintenance, mode without a password. This ability could allow a malicious user to boot the system and perform changes that could compromise or damage the system. It could also allow the system to be used for malicious purposes by a malicious anonymous user.

STIG	Date
AIX 5.3 Security Technical Implementation Guide	2012-05-25

Details

Check Text ( C-37096r1_chk )
Determine if the system is configured to boot from devices other than the system startup media. # bootlist -m normal -o The returned values should be hdisk{x}. If the system is setup to boot from a non-hard disk device, this is a finding. Additionally, ask the SA if the machine is setup for multi-boot in the SMS application. If multi-boot is enabled, the firmware will stop at boot time and request which image to boot from the user. If multi-boot is enabled, this is a finding.

Check Text ( C-37096r1_chk )

Determine if the system is configured to boot from devices other than the system startup media.
# bootlist -m normal -o
The returned values should be hdisk{x}. If the system is setup to boot from a non-hard disk device, this is a finding.

Additionally, ask the SA if the machine is setup for multi-boot in the SMS application. If multi-boot is enabled, the firmware will stop at boot time and request which image to boot from the user. If multi-boot is enabled, this is a finding.

Fix Text (F-32367r1_fix)
Configure the system to only boot from system startup media. # bootlist -m normal hdisk< x > Set multi-boot to off in the SMS application.