STIGQter: STIG Summary: Oracle Linux 6 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

The system must require passwords to contain at least one lower-case alphabetic character.

DISA Rule

SV-208834r603263_rule

Vulnerability Number

V-208834

Group Title

SRG-OS-000070

Rule Version

OL6-00-000059

Severity

CAT III

CCI(s)

• CCI-000193 - The information system enforces password complexity by the minimum number of lower case characters used.

Weight

10

Fix Recommendation

The pam_cracklib module's "lcredit=" parameter controls requirements for usage of lower-case letters in a password. When set to a negative number, any password will be required to contain that many lower-case characters.

Edit /etc/pam.d/system-auth and /etc/pam.d/password-auth adding "lcredit=-1" after pam_cracklib.so to require use of a lower-case character in passwords.

Check Contents

To check how many lower-case characters are required in a password, run the following command:

$ grep pam_cracklib /etc/pam.d/system-auth /etc/pam.d/password-auth

The "lcredit" parameter (as a negative number) will indicate how many lower-case characters are required. The DoD requires at least one lower-case character in a password. This would appear as "lcredit=-1".

If the “lcredit” parameter is not found or not set to the required value, this is a finding.

Vulnerability Number

V-208834

Documentable

False

Rule Version

OL6-00-000059

Severity Override Guidance

To check how many lower-case characters are required in a password, run the following command:

$ grep pam_cracklib /etc/pam.d/system-auth /etc/pam.d/password-auth

The "lcredit" parameter (as a negative number) will indicate how many lower-case characters are required. The DoD requires at least one lower-case character in a password. This would appear as "lcredit=-1".

If the “lcredit” parameter is not found or not set to the required value, this is a finding.

Check Content Reference

M

Target Key

2928

Comments