STIGQter: STIG Summary: SUSE Linux Enterprise Server 15 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

The SUSE operating system must configure the Linux Pluggable Authentication Modules (PAM) to only store encrypted representations of passwords.

DISA Rule

SV-234886r622137_rule

Vulnerability Number

V-234886

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

SLES-15-020170

Severity

CAT II

CCI(s)

• CCI-000196 - The information system, for password-based authentication, stores only cryptographically-protected passwords.

Weight

10

Fix Recommendation

Configure the SUSE operating system Linux PAM to only store encrypted representations of passwords. All account passwords must be hashed with SHA512 encryption strength.

Edit "/etc/pam.d/common-password" and edit the line containing "pam_unix.so" to contain the SHA512 keyword after third column. Remove the "nullok" option.

Check Contents

Verify the SUSE operating system configures the Linux PAM to only store encrypted representations of passwords. All account passwords must be hashed with SHA512 encryption strength.

Check that PAM is configured to create SHA512 hashed passwords by running the following command:

> grep pam_unix.so /etc/pam.d/common-password
password required pam_unix.so sha512

If the command does not return anything or the returned line is commented out, has a second column value different from "required", or does not contain "sha512", this is a finding.

Vulnerability Number

V-234886

Documentable

False

Rule Version

SLES-15-020170

Severity Override Guidance

Verify the SUSE operating system configures the Linux PAM to only store encrypted representations of passwords. All account passwords must be hashed with SHA512 encryption strength.

Check that PAM is configured to create SHA512 hashed passwords by running the following command:

> grep pam_unix.so /etc/pam.d/common-password
password required pam_unix.so sha512

If the command does not return anything or the returned line is commented out, has a second column value different from "required", or does not contain "sha512", this is a finding.

Check Content Reference

M

Target Key

5274

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