Vulnerability Development: generic privellage escalation

["Ben Greenberg" <benfallout2 () hotmail com>]

Are there any papers out there that detail a generic method for privellage 
escalation.  specifically the following situations are ones in which id like 
to know a method for always escalating privellages;  when i do security 
audits i always want to show the full extent of the vulnerability:
specifically
-----
-ability to execute commands one at a time statelessly through the url, and 
with a response to the browser ESCALATE TO a netcat created port for 
connecting to a shell
-also is there any document with generically applicable php, asp, server 
side include command execution/privellage escalation?
thanks--if anyone could point me to anything like this it would make things 
a lot easier for me.
ben

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