All system command files must have mode 755 or less permissive.

From Red Hat Enterprise Linux 6 Security Technical Implementation Guide

Associated with: CCI-001499

SV-50269r3_rule All system command files must have mode 755 or less permissive.

Vulnerability discussion

System binaries are executed by privileged users, as well as system services, and restrictive permissions are necessary to ensure execution of these programs cannot be co-opted.

Check content

System executables are stored in the following directories by default: /bin /usr/bin /usr/local/bin /sbin /usr/sbin /usr/local/sbin All files in these directories should not be group-writable or world-writable. To find system executables that are group-writable or world-writable, run the following command for each directory [DIR] which contains system executables: $ find -L [DIR] -perm /022 -type f If any system executables are found to be group-writable or world-writable, this is a finding.

Fix text

System executables are stored in the following directories by default: /bin /usr/bin /usr/local/bin /sbin /usr/sbin /usr/local/sbin If any file in these directories is found to be group-writable or world-writable, correct its permission with the following command: # chmod go-w [FILE]

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.