======6.2.8 Ensure users' home directories permissions are 750 or more restrictive (Scored)======
=====Profile Applicability=====
Level 1 - Server
Level 1 - Workstation
=====Description=====
While the system administrator can establish secure permissions for users' home directories, the users can easily override these.
=====Rationale=====
Group or world-writable user home directories may enable malicious users to steal or modify other users' data or to gain another user's system privileges.
=====Audit=====
Run the following script and verify no results are returned:
#!/bin/bash
for dir in `cat /etc/passwd | egrep -v '(root|halt|sync|shutdown)' | awk -F: '($7 != "/usr/sbin/nologin") { print $6 }'`; do
dirperm=`ls -ld $dir | cut -f1 -d" "`
if [ `echo $dirperm | cut -c6 ` != "-" ]; then
echo "Group Write permission set on directory $dir"
fi
if [ `echo $dirperm | cut -c8 ` != "-" ]; then
echo "Other Read permission set on directory $dir"
fi
if [ `echo $dirperm | cut -c9 ` != "-" ]; then
echo "Other Write permission set on directory $dir"
fi
if [ `echo $dirperm | cut -c10 ` != "-" ]; then
echo "Other Execute permission set on directory $dir"
fi
done
=====Remediation=====
Making global modifications to user home directories without alerting the user community can result in unexpected outages and unhappy users. Therefore, it is recommended that a monitoring policy be established to report user file permissions and determine the action to be taken in accordance with site policy.