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Re: Re: CVE Request -- ModSecurity (X < 2.7.3): Vulnerable to XXE attacks
From: Jan Lieskovsky <jlieskov () redhat com>
Date: Tue, 9 Apr 2013 05:26:42 -0400 (EDT)

Hi Breno,

  (Cc-ing Athmane on this due reasons which will get obvious below).

  thank you for checking with us.

AFAICT to fix this in Fedora and Fedora EPEL-6 versions, we have
just rebased to latest upstream 2.7.3 version. But you are truly
right (assuming this being the reason you are checking with us),
that on Fedora EPEL-5 we are shipping older (2.6.8 based version
of ModSecurity).

FWIHL:
  [1] https://bugzilla.redhat.com/show_bug.cgi?id=947842#c1

it's wasn't immediately clear how the backported upstream patch
would look like in / against that version (and not completely
sure we can just rebase in that product too - Athmane could you
clarify here if we can rebase or would rather want upstream patch
form against 2.6.8 version?)

Breno, so if you are willing to help (and Athmane would confirm
we need patch against 2.6.8 version), it would be appreciated
if you could provide it.

That's just for our expectations. Obviously other vendors might
be interested in upstream patch backports against different versions
yet (but I will let them to speak out their needs by themselves).

Thank you for your time / check anyway. It's appreciated.

Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team


----- Original Message -----
Hello Jan,

Are you guys backporting de patch to old versions of ModSecurity ?

Thanks

Breno


On Wed, Apr 3, 2013 at 9:23 AM, Jan Lieskovsky <jlieskov () redhat com> wrote:

Hello Kurt, Steve, Breno, vendors,

  ModSecurity upstream has released v2.7.3 version:
[1] https://github.com/SpiderLabs/ModSecurity/blob/master/CHANGES

correcting one security flaw (from [2]):
"It was reported that the XML files parser of ModSecurity,
a security module for the Apache HTTP Server, was vulnerable
to XML External Entity attacks. A remote attacker could
provide a specially-crafted XML file that, when processed
might lead to local files disclosure or, potentially,
excessive resources (memory, CPU) consumption."

References:
[2] https://bugzilla.redhat.com/show_bug.cgi?id=947842
[3] https://bugs.gentoo.org/show_bug.cgi?id=464188
[4] https://secunia.com/advisories/52847/

Relevant upstream patch (seems to be the following):
[5]
https://github.com/SpiderLabs/ModSecurity/commit/d4d80b38aa85eccb26e3c61b04d16e8ca5de76fe

Could you allocate a CVE id [*] for this?

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

[*] According to:
https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=ModSecurity
    there doesn't seem to have been a CVE id allocated for this issue yet.



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