Linux privilege checker is an enumeration tool with privilege escalation checking capabilities. To give it a try, download it from http://www.securitysift.com/download/linuxprivchecker.py. You can download it using the wget command as follows:
wget http://www.securitysift.com/download/linuxprivchecker.py
You can run it on your system by typing ./linuxprivchecker.py or python linuxprivchecker.py.
Another tool for Unix and Linux operating systems is called unix-privesc-checker. It is available at http://pentestmonkey.net/tools/audit/unix-privesc-check ...