Default system accounts must be disabled or removed.

From SOLARIS 10 X86 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN002640

Associated with: CCI-000178

SV-39834r2_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 sys, bin, uucp, nuucp, daemon, smtp, gdm, lp, nobody) have been disabled. # cat /etc/shadow If an account's password field is "*", "*LK*", "NP", or is prefixed with a "!", the account is locked or disabled. If any default system account is not locked and its use is not justified and documented with the ISSO, this is a finding.

Fix text

Lock the default system account(s). # passwd -l

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