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Re: CVE Request for Horde and Squirrelmail


From: Josh Bressers <bressers () redhat com>
Date: Tue, 25 May 2010 14:26:18 -0400 (EDT)

----- "Max Olsterd" <max.olsterd () gmail com> wrote:

Hi,

Is there a CVE number available for the two 0-days exposed during Hack In
The Box Dubai 2010 ?

Though the exploits were not given during HITB (?), some friends have
recently shown me that they found how both products (Squirrelmail and
Horde) might be abused to be transformed, so that they become some kind
of nmap scanner (banner grab, port scan, etc). It helps at discovering a
remote DMZ, internal LAN, etc, by using those webmails as evil internal
nmap proxies.

More info available on the slides of the corporate hackers who found the
0-days :
http://conference.hitb.org/hitbsecconf2010dxb/materials/D1%20-%20Laurent%20Oudot%20-%20Improving%20the%20Stealthiness%20of%20Web%20Hacking.pdf
-> Squirrelmail: page 69 (post auth vuln)
-> Horde: page 74 (pre auth vuln)


Here goes, there isn't a lot of data on these.

For Squirrelmail:

Here are some important notes from the slide:
        * Default plugin <mail_fetch>, emulates POP3 fetcher with fsockopen()
          PHP functions, Post Authentication only
            - No verification on IP / PORTS
        * You can transform SquirrelMail as a kind of Nmap scanner

        This has been assigned TEHTRI-SA-2010-009 by the discoverer.

        The danger is that this attack could be used to bypass a firewall.

Let's use CVE-2010-1637 for Squirrelmail.


For Horde:

        * You can transform a default Horde installation to a kind of
          advanced network TCP scanner with banner grabbing, etc

        Pre-auth

        TEHTRI-SA-2010-010

Let's use CVE-2010-1638 for Horde


If anyone has more links or information for these, please pass them along.
Thanks.

-- 
    JB


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