The .rhosts, .shosts, hosts.equiv, shosts.equiv, /etc/passwd, /etc/shadow, and/or /etc/group files must not contain a plus (+) without defining entries for NIS+ netgroups or LDAP netgroups.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN001980

Associated with: CCI-000366

SV-38740r2_rule The .rhosts, .shosts, hosts.equiv, shosts.equiv, /etc/passwd, /etc/shadow, and/or /etc/group files must not contain a plus (+) without defining entries for NIS+ netgroups or LDAP netgroups.

Vulnerability discussion

A plus (+) in system accounts files causes the system to lookup the specified entry using NIS or LDAP. If the system is not using NIS or LDAP, no such entries should exist.

Check content

Check system configuration files for plus (+) entries. Procedure: # find / -name .rhosts # cat //.rhosts | grep -v "^#" | grep "\+" # find / -name .shosts # cat //.shosts | grep -v "^#" | grep "\+" # find / -name hosts.equiv # cat //hosts.equiv | grep -v "^#" | grep "\+" # find / -name shosts.equiv # cat //shosts.equiv | grep -v "^#" | grep "\+" # cat /etc/passwd | grep -v "^#" | grep "\+" # cat /etc/security/passwd | grep -v "^#" | grep "\+" # cat /etc/group | grep -v "^#" | grep "\+" If the .rhosts, .shosts, hosts.equiv, shosts.equiv, /etc/passwd, /etc/shadow, and/or /etc/group files contain a plus (+) and do not define entries for NIS+ netgroups or LDAP netgroups, this is a finding.

Fix text

Edit the .rhosts, .shosts, hosts.equiv, shosts.equiv, /etc/passwd, /etc/security/passwd, and/or /etc/group files and remove entries containing a plus (+).

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