STIGQter: STIG Summary: Red Hat Enterprise Linux 8 Security Technical Implementation Guide Version: 1 Release: 2 Benchmark Date: 23 Apr 2021:

RHEL 8 must employ FIPS 140-2 approved cryptographic hashing algorithms for all created passwords.

DISA Rule

SV-230233r627750_rule

Vulnerability Number

V-230233

Group Title

SRG-OS-000073-GPOS-00041

Rule Version

RHEL-08-010130

Severity

CAT II

CCI(s)

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

Weight

10

Fix Recommendation

Configure RHEL 8 to encrypt all stored passwords with a strong cryptographic hash.

Edit/modify the following line in the "/etc/pam.d/password-auth" and "etc/pam.d/system-auth" files and set "rounds" to a value no lower than "5000":

password sufficient pam_unix.so sha512 rounds=5000

Check Contents

Check that a minimum number of hash rounds is configured by running the following commands:

$ sudo grep rounds /etc/pam.d/password-auth

password sufficient pam_unix.so sha512 rounds=5000

$ sudo grep rounds /etc/pam.d/system-auth

password sufficient pam_unix.so sha512 rounds=5000

If "rounds" has a value below "5000", or is commented out in either file, this is a finding.

Vulnerability Number

V-230233

Documentable

False

Rule Version

RHEL-08-010130

Severity Override Guidance

Check that a minimum number of hash rounds is configured by running the following commands:

$ sudo grep rounds /etc/pam.d/password-auth

password sufficient pam_unix.so sha512 rounds=5000

$ sudo grep rounds /etc/pam.d/system-auth

password sufficient pam_unix.so sha512 rounds=5000

If "rounds" has a value below "5000", or is commented out in either file, this is a finding.

Check Content Reference

M

Target Key

2921

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