Title

All .rhosts, .shosts, or host.equiv files must only contain trusted host-user pairs. (Cat II impact)

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 r-commands access control files. Procedure: # find / -name .rhosts # more /<directorylocation>/.rhosts # find / -name .shosts # more /<directorylocation>/.shosts # find / -name hosts.equiv # more /<directorylocation>/hosts.equiv # find / -name shosts.equiv # more /<directorylocation>/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.

Additional Identifiers

Rule ID: SV-45166r1_rule

Vulnerability ID: V-4427

Group Title: GEN002020

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.