STIGQter STIGQter: STIG Summary: SLES 12 Security Technical Implementation Guide Version: 2 Release: 3 Benchmark Date: 23 Apr 2021:

SUSE operating system file systems that contain user home directories must be mounted to prevent files with the setuid and setgid bit set from being executed.

DISA Rule

SV-217178r603891_rule

Vulnerability Number

V-217178

Group Title

SRG-OS-000480-GPOS-00227

Rule Version

SLES-12-010790

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Configure the SUSE operating system "/etc/fstab" file to use the "nosuid" option on file systems that contain user home directories for interactive users.

Re-mount the filesystems.

# mount -o remount /home

Check Contents

Verify that SUSE operating system file systems that contain user home directories are mounted with the "nosuid" option.

Print the currently active file system mount options of the file system(s) that contain the user home directories with the following command:

# for X in `awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd`; do findmnt -nkT $X; done | sort -r
/home /dev/mapper/system-home ext4 rw,nosuid,relatime,data=ordered

If a file system containing user home directories is not mounted with the FSTYPE OPTION nosuid, this is a finding.

Note: If a separate file system has not been created for the user home directories (user home directories are mounted under "/"), this is not a finding as the "nosuid" option cannot be used on the "/" system.

Vulnerability Number

V-217178

Documentable

False

Rule Version

SLES-12-010790

Severity Override Guidance

Verify that SUSE operating system file systems that contain user home directories are mounted with the "nosuid" option.

Print the currently active file system mount options of the file system(s) that contain the user home directories with the following command:

# for X in `awk -F: '($3>=1000)&&($7 !~ /nologin/){print $6}' /etc/passwd`; do findmnt -nkT $X; done | sort -r
/home /dev/mapper/system-home ext4 rw,nosuid,relatime,data=ordered

If a file system containing user home directories is not mounted with the FSTYPE OPTION nosuid, this is a finding.

Note: If a separate file system has not been created for the user home directories (user home directories are mounted under "/"), this is not a finding as the "nosuid" option cannot be used on the "/" system.

Check Content Reference

M

Target Key

4033

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