Title

The Red Hat Enterprise Linux operating system must be configured so that all files and directories contained in local interactive user home directories have a mode of 0750 or less permissive. (Cat II impact)

Discussion

If a local interactive user files have excessive permissions, unintended users may be able to access or modify them.

Check Content

Verify all files and directories contained in a local interactive user home directory, excluding local initialization files, have a mode of "0750". Check the mode of all non-initialization files in a local interactive user home directory with the following command: Files that begin with a "." are excluded from this requirement. Note: The example will be for the user "smithj", who has a home directory of "/home/smithj". # ls -lLR /home/smithj -rwxr-x--- 1 smithj smithj 18 Mar 5 17:06 file1 -rwxr----- 1 smithj smithj 193 Mar 5 17:06 file2 -rw-r-x--- 1 smithj smithj 231 Mar 5 17:06 file3 If any files are found with a mode more permissive than "0750", this is a finding.

Fix Text

Set the mode on files and directories in the local interactive user home directory with the following command: Note: The example will be for the user smithj, who has a home directory of "/home/smithj" and is a member of the users group. # chmod 0750 /home/smithj/<file>

Additional Identifiers

Rule ID: SV-204473r603261_rule

Vulnerability ID: V-204473

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.