Default system accounts must be disabled or removed.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: IAAC-1

Associated with: CCI-000178

SV-38897r1_rule Default system accounts must be disabled or removed.

Vulnerability discussion

Vendor accounts and software may contain backdoors allowing unauthorized access to the system. These backdoors are common knowledge and present a threat to system security if the account is not disabled.

Check content

Determine if default system accounts (such as those for guest, sys, bin, uucp, nuucp, daemon, smtp, and lpd) have been disabled. Procedure: # lsuser -a account_locked ALL If there are any unlocked default system accounts, this is a finding.

Fix text

Lock the default system account(s). # chuser account_locked=true

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