Re: [Exim] Exim and IBM DB2

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Autor: Philip Hazel
Data:  
Para: Sheldon Hearn
CC: Sean Witham, Exim Users Mailing List
Asunto: Re: [Exim] Exim and IBM DB2
On Wed, 19 Dec 2001, Sheldon Hearn wrote:

> Actually, Exim's invulnerability to abuse of its setuid privelege isn't
> hard to prove. There's not that much code to audit between program
> execution and setuid()/setgid() time.


Sorry, Sheldon, but I'm afraid that's not true. An Exim delivery process
retains privilege until after it has done local deliveries. Each local
delivery is done in a subprocess which throws away privilege, but the
controlling process retains privilege.

--
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.