STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 1 Release: 2 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-234819r622137_rule

Vulnerability Number

V-234819

Group Title

SRG-OS-000080-GPOS-00048

Rule Version

SLES-15-010190

Severity

CAT I

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 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:

> 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 and add the following two lines to add a boot password for the root entry:

set superusers="root"
password_pbkdf2 root grub.pbkdf2.sha512.VeryLongString

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 BIOS this requirement is Not Applicable.

Check that the encrypted password is set for root with the following command:

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

password_pbkdf2 root grub.pbkdf2.sha512.10000.VeryLongString

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

Vulnerability Number

V-234819

Documentable

False

Rule Version

SLES-15-010190

Severity Override Guidance

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

Note: If the system does not use a BIOS this requirement is Not Applicable.

Check that the encrypted password is set for root with the following command:

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

password_pbkdf2 root grub.pbkdf2.sha512.10000.VeryLongString

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

Check Content Reference

M

Target Key

5274

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