The SUSE operating system file integrity tool must be configured to verify extended attributes.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-234987	SLES-15-040050	SV-234987r880969_rule		Low

Description
Extended attributes in file systems are used to contain arbitrary data and file metadata with security implications.

STIG	Date
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide	2022-12-07

Details

Check Text ( C-38175r880969_chk )
Verify that the SUSE operating system file integrity tool is configured to verify extended attributes. If there is no application installed to perform integrity checks, this is a finding. Check the "/etc/aide.conf" file to determine if the "xattrs" rule has been added to the rule list being applied to the files and directories selection lists. An example rule that includes the "xattrs" rule follows: All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux /bin All > apply the custom rule to the files in bin /sbin All > apply the same custom rule to the files in sbin If the "xattrs" rule is not being used on all selection lines in the "/etc/aide.conf" file, or extended attributes are not being checked by another file integrity tool, this is a finding.

Check Text ( C-38175r880969_chk )

Verify that the SUSE operating system file integrity tool is configured to verify extended attributes.

If there is no application installed to perform integrity checks, this is a finding.

Check the "/etc/aide.conf" file to determine if the "xattrs" rule has been added to the rule list being applied to the files and directories selection lists.

An example rule that includes the "xattrs" rule follows:

All= p+i+n+u+g+s+m+S+sha512+acl+xattrs+selinux
/bin All > apply the custom rule to the files in bin
/sbin All > apply the same custom rule to the files in sbin

If the "xattrs" rule is not being used on all selection lines in the "/etc/aide.conf" file, or extended attributes are not being checked by another file integrity tool, this is a finding.

Fix Text (F-38138r619231_fix)
Configure the SUSE operating system file integrity tool to check file and directory extended attributes. If AIDE is installed, ensure the "xattrs" rule is present on all file and directory selection lists.