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


Overview

Finding ID Version Rule ID IA Controls Severity
V-11948 GEN000600 SV-38673r1_rule IAIA-1 IAIA-2 Medium
Description
To enforce the use of complex passwords, minimum numbers of characters of different classes are mandated. The use of complex passwords reduces the ability of attackers to successfully obtain valid passwords using guessing or exhaustive search techniques. Complexity requirements increase the password search space by requiring users to construct passwords from a larger character set than they may otherwise use.
STIG Date
Draft AIX Security Technical Implementation Guide 2011-08-17

Details

Check Text ( C-36897r1_chk )
Check the minalpha setting.

Procedure:

# grep minalpha /etc/security/user
OR
#lsuser –a minalpha ALL
If minalpha is not set to 1 or more, this is a finding.
Fix Text (F-32032r1_fix)
Use the chsec command to set minalpha to at least 1.
#chsec –f /etc/security/user –s default –a minalpha=1
#chuser minalpha=1 < user id >