All RHEL 9 local interactive user home directories must have mode 0750 or less permissive.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-257890	RHEL-09-232050	SV-257890r925657_rule		Medium

Description
Excessive permissions on local interactive user home directories may allow unauthorized access to user files by other users.

STIG	Date
Red Hat Enterprise Linux 9 Security Technical Implementation Guide	2023-12-01

Details

Check Text ( C-61631r925655_chk )
Verify the assigned home directory of all local interactive users has a mode of "0750" or less permissive with the following command: Note: This may miss interactive users that have been assigned a privileged user identifier (UID). Evidence of interactive use may be obtained from a number of log files containing system logon information. $ sudo ls -ld $(awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd) drwxr-x--- 2 wadea admin 4096 Jun 5 12:41 wadea If home directories referenced in "/etc/passwd" do not have a mode of "0750" or less permissive, this is a finding.

Check Text ( C-61631r925655_chk )

Verify the assigned home directory of all local interactive users has a mode of "0750" or less permissive with the following command:

Note: This may miss interactive users that have been assigned a privileged user identifier (UID). Evidence of interactive use may be obtained from a number of log files containing system logon information.

$ sudo ls -ld $(awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd)

drwxr-x--- 2 wadea admin 4096 Jun 5 12:41 wadea

If home directories referenced in "/etc/passwd" do not have a mode of "0750" or less permissive, this is a finding.

Fix Text (F-61555r925656_fix)
Change the mode of interactive user's home directories to "0750". To change the mode of a local interactive user's home directory, use the following command: Note: The example will be for the user "wadea". $ sudo chmod 0750 /home/wadea