oss-security - Re: CVE Request -- urllib3: Does not check for SSL certificates by default

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Date: Fri, 7 Sep 2012 08:47:28 -0700
From: Andrey Petrov <andrey.petrov@...zow.net>
To: Jan Lieskovsky <jlieskov@...hat.com>
Cc: "Steven M. Christey" <coley@...us.mitre.org>, Jamie Strandboge <jamie@...ntu.com>, 
	oss-security@...ts.openwall.com
Subject: Re: CVE Request -- urllib3: Does not check for SSL
 certificates by default

Hi there, I'm the author of urllib3.

I would be happy to make urllib3 verify SSL certs by default but I'm not
familiar enough with the nuances of locating the CA's in a distro-agnostic
manner. If anyone has experience or ideas in doing this, please let me
know. Bonus points if it works on OSX.

Thanks!
- Andrey

On Fri, Sep 7, 2012 at 7:41 AM, Jan Lieskovsky <jlieskov@...hat.com> wrote:

> Steve,
>
>   in relation to this one the following question has been
> raised internally - it's OK to assign CVE identifier for
> end user applications, proclaiming to perform SSL certificates
> verification, but not doing that.
>
>   But what about the libraries? Obviously urllib3 when instructed
> to do so, performs the verification. The question is should it
> get a CVE identifier or not? Could you clarify Mitre's opinion /
> view on this?
>
> Thank you && Regards, Jan.
> --
> Jan iankko Lieskovsky / Red Hat Security Response Team
>
> > Hello Kurt, Steve, vendors,
> >
> >   it was reported that urllib3, a Python HTTP library
> > with thread-safe connection pooling and file post support,
> > did not perform SSL certificates verification by default.
> > A rogue HTTP server could use this flaw to conduct
> > man-in-the-middle (MITM) attacks.
> >
> > References:
> > [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686872
> > [2]
> https://bugs.launchpad.net/ubuntu/+source/python-urllib3/+bug/1047054
> > [3] https://bugzilla.redhat.com/show_bug.cgi?id=855320
> >     (the bug actually has python-requests in the summary,
> >      but only due the fact it contains embedded urllib3)
> >
> > Patch applied by the Ubuntu Linux distribution:
> > [4]
> http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=5;filename=python-urllib3_1.3-2ubuntu1.debdiff;att=1;bug=686872
> >
> > Reproducer:
> > [5]
> https://bugs.launchpad.net/ubuntu/+source/python-urllib3/+bug/1047054/comments/0
> >
> > Could you allocate a CVE id for this?
> >
> > Thank you && Regards, Jan.
> > --
> > Jan iankko Lieskovsky / Red Hat Security Response Team
>

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