Re: Hijacking Apache 2 via mod_perl

[jon schatz <jon () divisionbyzero com>]

Steve G wrote:

> > Then one just writes a perl extension in C. Who's responsible 
> > then? 
> But don't you need root to add extentions?

> > Who's responsible if you just write a C module which hijacks the
> > descriptors? 
> Again, you need an admin to update apache's config.

you need an admin to update the config file if you're trying to use the 
LoadModule directive. but if mod_perl's already running (and if 
.htaccess files aren't locked down enough), you can use the SetHandler 
to load up any (malicous) modules you might need. afaik, loading a 
module once in mod_perl will make it available to every child process. 
if i've been reading this thread right (and there's a good chance i 
haven't) then this would give EvilModule.pm access to the leaked fd's.

(i haven't tested this for httpd2/mod_perl2, but i know it holds true 
for httpd1.3.x/mod_perl, and the new docs don't indicate any changes).

-jon
--
jon () divisionbyzero com || www.divisionbyzero.com
gpg key: www.divisionbyzero.com/pubkey.asc
think i have a virus? www.divisionbyzero.com/pgp.html
"You are in a twisty little maze of Sendmail rules, all confusing."