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V-11987

CAT II (Medium)

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.

Rule ID

SV-45164r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-000366

Discussion

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

Check Content

Check system configuration files for plus (+) entries.

Procedure:
# find / -name .rhosts
# grep + /<directorylocation>/.rhosts

# find / -name .shosts
# grep + /<directorylocation>/.shosts

# find / -name hosts.equiv
# grep + /<directorylocation>/hosts.equiv

# find / -name shosts.equiv
# grep + /<directorylocation>/shosts.equiv

# grep + /etc/passwd
# grep + /etc/shadow
# grep + /etc/group

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, this is a finding.

Fix Text

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