Title

A separate file system must be used for SLEM 5 user home directories (such as /home or an equivalent). (Cat II impact)

Discussion

The use of separate file systems for different paths can protect the system from failures resulting from a file system becoming full or failing.

Check Content

Verify that a separate file system/partition has been created for SLEM 5 nonprivileged local interactive users (those with a UID greater than 1000) home directories with the following command: > awk -F: '($3>=1000)&&($7 !~ /nologin/){print $1, $3, $6, $7}' /etc/passwd adamsj 1002 /home/adamsj /bin/bash jacksonm 1003 /home/jacksonm /bin/bash smithj 1001 /home/smithj /bin/bash The output of the command will give the directory/partition that contains the home directories for the nonprivileged users on the system (in this example, /home) and user's shell. All accounts with a valid shell (such as /bin/bash) are considered interactive users. Check that a file system/partition has been created for the nonprivileged interactive users with the following command: Note: The partition of /home is used in the example. > grep /home /etc/fstab UUID=c4e898dd-6cd9-4091-a733-9435e505957a /home btrfs defaults,subvol=@/home 0 0 If a separate entry for the file system/partition that contains the nonprivileged interactive users' home directories does not exist, this is a finding.

Fix Text

Create a separate file system/partition for SLEM 5 nonprivileged local interactive user home directories. Migrate the nonprivileged local interactive user home directories onto the separate file system/partition.

Additional Identifiers

Rule ID: SV-261278r996320_rule

Vulnerability ID: V-261278

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

Expert Comments

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