The system must not have unnecessary accounts.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN000290

Associated with IA controls: IAAC-1

Associated with: CCI-000012

SV-38767r1_rule The system must not have unnecessary accounts.

Vulnerability discussion

Accounts providing no operational purpose provide additional opportunities for system compromise. Unnecessary accounts include user accounts for individuals not requiring access to the system and application accounts for applications not installed on the system.

Check content

Check the system for unnecessary user accounts. Procedure: # more /etc/passwd Some examples of unnecessary accounts includes guest, uucp, games, news, gopher, ftp, and lp. If any unnecessary accounts are found, this is a finding.

Fix text

Remove all unnecessary accounts, such as games, from the /etc/passwd file before connecting a system to the network. Other accounts, such as news and gopher, that are associated with a service not in use should also be removed. # rmuser -p

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