Buffer overflow in /usr/lib/sysadm/authsh, /usr/lib/sysadm/backupsh allow to gain egid backup.
vulners.com/securityvulns/securityvulns:doc:10000
vulners.com/securityvulns/securityvulns:doc:10016
vulners.com/securityvulns/securityvulns:doc:10017