Decode mail alias
Summary
A mail alias that runs the uudecode command on the mail sent to it.
Impact
This alias can be used to overwrite files on the system.
The problem
Since the mail system normally runs as superuser, this alias can be used to
open holes for a system cracker. The system cracker could overwrite
important system files (such as /etc/hosts.equiv) or user files (such
as $HOME/.rhosts).
Fix
Comment out or delete the decode alias from /etc/aliases (or /usr/lib/aliases)
and run the newaliases program to incorporate the change.
Other tips