All .rhosts, .shosts, or host.equiv files must only contain trusted host-user pairs.

From SOLARIS 10 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE

Part of GEN002020

Associated with IA controls: ECCD-2, ECCD-1

Associated with: CCI-000366

SV-40331r1_rule All .rhosts, .shosts, or host.equiv files must only contain trusted host-user pairs.

Vulnerability discussion

If these files are not properly configured, they could allow malicious access by unknown malicious users from untrusted hosts who could compromise the system.

Check content

Locate and examine all .rhosts, .shosts, hosts.equiv, and shosts.equiv files. The .rhosts and .shosts files are stored in home directories. (If a user does not have a home directory assigned in /etc/passwd, the root directory (/) is assigned as a default home directory.) Procedure: # for i in `cut -d: -f6 /etc/passwd | awk '$1 == "" {$1 = "/"} {print $1}'`; do more $i/.rhosts; more $i/.shosts; done # more /etc/hosts.equiv # more /etc/ssh/shosts.equiv If any .rhosts, .shosts, hosts.equiv, or shosts.equiv file contains other than host-user pairs, this is a finding.

Fix text

If possible, remove the .rhosts, .shosts, hosts.equiv, and shosts.equiv files. If the files are required, remove any content from the files except for necessary host-user pairs.

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.