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Default system accounts must be disabled or removed.


Overview

Finding ID Version Rule ID IA Controls Severity
V-27263 GEN002640 SV-810r2_rule Medium
Description
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.
STIG Date
UNIX SRG 2013-03-26

Details

Check Text ( C-552r2_chk )
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*", or is prefixed with a "!", the account is locked or disabled.
If there is any default system accounts not locked, this is a finding.
Fix Text (F-964r2_fix)
Lock the default system account(s).
# passwd -l