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The system must require passwords contain a minimum of 14 characters.


Overview

Finding ID Version Rule ID IA Controls Severity
V-11947 GEN000580 SV-63903r1_rule IAIA-1 IAIA-2 Medium
Description
The use of longer passwords reduces the ability of attackers to successfully obtain valid passwords using guessing or exhaustive search techniques by increasing the password search space.
STIG Date
Oracle Linux 5 Security Technical Implementation Guide 2015-03-26

Details

Check Text ( C-52427r1_chk )
Check the system password length setting.

Procedure:
Check the password minlen option
# grep pam_cracklib.so /etc/pam.d/system-auth

Confirm the minlen option is set to at least 14 as in the example below:

password required pam_cracklib.so minlen=14

There may be other options on the line. If no such line is found, or the minlen is less than 14 this is a finding.
Fix Text (F-54479r1_fix)
Edit "/etc/pam.d/system-auth" to include the line:

password required pam_cracklib.so minlen=14

prior to the "password include system-auth-ac" line.