The system must require that passwords contain at least one special character.

From AIX 5.3 Security Technical Implementation Guide

Part of GEN000640

Associated with IA controls: IAIA-2, IAIA-1

Associated with: CCI-001619

SV-39503r1_rule The system must require that passwords contain at least one special character.

Vulnerability discussion

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.

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Fix text

Use the chsec command to set the minother setting to 1. # chsec -f /etc/security/user -s default -a minother=1 # chuser minother=1 < user id >

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