1.3.4 Ensure AIDE is configured to verify XATTRS - config

Information

The operating system must be configured so that the file integrity tool is configured to verify extended attributes.

Rationale:

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

Solution

Configure the file integrity tool to check file and directory extended attributes.
If AIDE is installed, ensure the xattrs rule is present on all uncommented file and directory selection lists.
Example: vim /etc/aide.conf
add rule that includes the xattrs example:

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

See Also

https://workbench.cisecurity.org/files/3636

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CCI|CCI-000366, CSCv7|14.6, Rule-ID|SV-204499r603261_rule, STIG-ID|RHEL-07-021610

Plugin: Unix

Control ID: 64c7d1d4de4e7182a7304a585d1f38bb3ea8997a2d45f50e153babd8a49bf91f