STIGQter: STIG Summary: SLES 12 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

SUSE operating systems with a basic input/output system (BIOS) must require authentication upon booting into single-user and maintenance modes.

DISA Rule

SV-217144r603262_rule

Vulnerability Number

V-217144

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

SLES-12-010430

Severity

CAT II

CCI(s)

• CCI-000213 - The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Note: If the system does not use a basic input/output system (BIOS) this requirement is Not Applicable.

Configure the SUSE operating system to encrypt the boot password.

Generate an encrypted (GRUB2) password for root with the following command:

# sudo grub2-mkpasswd-pbkdf2
Enter Password:
Reenter Password:
PBKDF2 hash of your password is grub.pbkdf2.sha512.10000.MFU48934NJD84NF8NSD39993JDHF84NG

Using the hash from the output, modify the "/etc/grub.d/40_custom" file with the following command to add a password for the boot user entry:

# cat << EOF
set superusers="boot"
password_pbkdf2 boot grub.pbkdf2.sha512.VeryLongString
EOF

Generate an updated "grub.conf" file with the new password using the following commands:

# sudo grub2-mkconfig --output=/tmp/grub2.cfg
# sudo mv /tmp/grub2.cfg /boot/grub2/grub.cfg

Check Contents

Verify that the SUSE operating system has set an encrypted root password.

Note: If the system does not use a basic input/output system (BIOS) this requirement is Not Applicable.

Check that the encrypted password is set for a boot user with the following command:

# sudo cat /boot/grub2/grub.cfg | grep -i password

password_pbkdf2 boot grub.pbkdf2.sha512.10000.VeryLongString

If the boot user password entry does not begin with "password_pbkdf2", this is a finding.

Vulnerability Number

V-217144

Documentable

False

Rule Version

SLES-12-010430

Severity Override Guidance

Verify that the SUSE operating system has set an encrypted root password.

Note: If the system does not use a basic input/output system (BIOS) this requirement is Not Applicable.

Check that the encrypted password is set for a boot user with the following command:

# sudo cat /boot/grub2/grub.cfg | grep -i password

password_pbkdf2 boot grub.pbkdf2.sha512.10000.VeryLongString

If the boot user password entry does not begin with "password_pbkdf2", this is a finding.

Check Content Reference

M

Target Key

4033

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