The system must require passwords to contain a minimum of 15 characters.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN000580

Associated with: CCI-000205

SV-38936r2_rule The system must require passwords to contain a minimum of 15 characters.

Vulnerability discussion

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.

Check content

Check the system password length setting. # /usr/sbin/lsuser -a minlen ALL If minlen is not set to 15 or more, this is a finding.

Fix text

Change the minimum password length to 15 or more. # chsec -f /etc/security/user -s default -a minlen=15 # chuser minlen=15

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