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V-904

CAT II (Medium)

All local initialization files must be owned by the home directorys user or root.

Rule ID

SV-45151r1_rule

STIG

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

Version

V1R12

CCIs

CCI-000225

Discussion

Local initialization files are used to configure the user's shell environment upon login. Malicious modification of these files could compromise accounts upon logon.

Check Content

Check the ownership of local initialization files.

Procedure:
# ls –a /<users home directory> | grep “^\.” | awk '{if ((!($1=="."))&&(!($1==".."))) print}' | xargs ls -ld

If local initialization files are not owned by the home directory's user, this is a finding.

Fix Text

Change the ownership of the startup and login files in the user’s directory to the user or root, as appropriate. Examine each user’s home directory and verify all filenames beginning with “.” are owned by the owner of the directory or root. If they are not, use the chown command to change the owner to the user and research the reasons why the owners were not assigned as required. 

Procedure:
# chown username .filename
Document all changes.