The system must require passwords to contain at least one numeric character.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-38482	RHEL-06-000056	SV-50282r1_rule		Low

Description
Requiring digits makes password guessing attacks more difficult by ensuring a larger search space.

STIG	Date
Red Hat Enterprise Linux 6 Security Technical Implementation Guide	2015-09-09

Details

Check Text ( None )
None

Fix Text (F-43427r1_fix)
The pam_cracklib module's "dcredit" parameter controls requirements for usage of digits in a password. When set to a negative number, any password will be required to contain that many digits. When set to a positive number, pam_cracklib will grant +1 additional length credit for each digit. Add "dcredit=-1" after pam_cracklib.so to require use of a digit in passwords.