The operating system must have no files with extended attributes.

From Solaris 11 SPARC Security Technical Implementation Guide

Associated with: CCI-000366

SV-60909r2_rule The operating system must have no files with extended attributes.

Vulnerability discussion

Attackers or malicious users could hide information, exploits, etc. in extended attribute areas. Since extended attributes are rarely used, it is important to find files with extended attributes set and correct these attributes.

Check content

The root role is required. Identify all files with extended attributes. # find / \( -fstype nfs -o -fstype cachefs -o -fstype autofs \ -o -fstype ctfs -o -fstype mntfs -o -fstype objfs \ -o -fstype proc \) -prune -o -xattr -ls If output is produced, this is a finding.

Fix text

The root role is required. Correct or justify any items discovered in the Check step. Determine the existence of any files having extended file attributes, and determine the best course of action in accordance with site policy. Remove the files or the extended attributes.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.