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Mon Sep 1 18:48:23 CEST 2014 · https://mail.python.org/pipermail/python-dev/2014-September/136151.html

> On Sep 1, 2014, at 11:35 AM, Nick Coghlan <ncoghlan at gmail.com> wrote:
> 
> 
> On 2 Sep 2014 00:59, "Antoine Pitrou" <solipsis at pitrou.net <mailto:solipsis at pitrou.net>> wrote:
> >
> > On Tue, 2 Sep 2014 00:53:11 +1000
> > Nick Coghlan <ncoghlan at gmail.com <mailto:ncoghlan at gmail.com>> wrote:
> > > >
> > > > To be frank I don't understand what you're arguing about.
> > >
> > > When I said "shadowing ssl can be tricky to arrange", Chris correctly
> > > interpreted it as referring to the filesystem based privilege escalation
> > > scenario that isolated mode handles, not to normal in-process
> > > monkeypatching or module injection.
> >
> > There's no actual difference. You can have a sitecustomize.py that does
> > the monkeypatching or the shadowing. There doesn't seem to be anything
> > "tricky" about that.
> 
> Oh, now I get what you mean - yes, sitecustomize already poses the same kind of problem as the proposed sslcustomize (hence the existence of the related command line options).
> 
> I missed that you had switched to talking about using that attack vector, rather than trying to shadow stdlib modules directly through the filesystem (which is the only tricky thing I was referring to).
> 
> Cheers,
> Nick.
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Or you can just install something with easy_install, or you can drop a .pth file and monkey patch there. You can’t stop people from overriding modules, it’s trivial to do. The sys.path ordering just makes it slightly less trivial.

—
Donald Stufft
PGP: 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA

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