bugtraq - MailEnable Smtpd remote Dos [x0n3-h4ck]

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Message-ID: <005601c53a1e$29f1a7a0$0100a8c0@server>
Date: Tue, 5 Apr 2005 22:29:26 +0200
From: "CorryL" <corryl@...overde.com>
To: "bugtraq" <bugtraq@...urityfocus.com>
Subject: MailEnable Smtpd remote Dos [x0n3-h4ck]


-=[---------------------ADVISORY---------------------------]=-
-=[                                                                         
                   ]=-
-=[    MailEnable Enterprise & Pro remote DOS                        ]=-
-=[                                                                         
                   ]=-
-=[  Author: CorryL     [corryl80@...il.com]                           ]=-
-=[                                                                         
                   ]=-
-=[
w.x0n3-h3ck.org                               ]=-
-=[-------------------------------------------------------------]=-

-=[+] Application:    Mail Enable Smtpd ( MESMTPC.exe )
-=[+] Version:        (Enterprise <= 1.04)-(Professional <= 1.54)
-=[+] Vendor's URL:   www.mailenable.com
-=[+] Platform:       Windows
-=[+] Bug type:       DOS
-=[+] Exploitation:   Remote/Local
-=[-]
-=[+] Author:         CorryL     ~  corryl80[at]gmail[dot]com ~
-=[+] Reference:      www.x0n3-h4ck.org


..::[ Descriprion ]::..

MailEnable's mail server software provides a powerful,
scalable hosted messaging platform for Microsoft Windows.
MailEnable offers stability, unsurpassed flexibility and
an extensive feature set which allows you to provide
cost-effective mail services.


..::[ Bug ]::..

smptd of mailenable has a bug on a particular request EHLO,
the bug and' caused by the dispatch of a lace unicode,
that the demon reads as an address of memory causing the crash of the
service


..::[ Proof Of Concept ]::..

EHLO x99

..::[ Exploit ]::..

http://www.x0n3-h4ck.org/upload/x0n3-h4ck_mailenable_smtpd.pl

..::[ Workaround ]::..

There is no workaround

..::[ Path or Fix ]::..

http://www.mailenable.com/hotfix

..::[ Disclousure Timeline ]::..

[02/04/2005] - Vendor notification
[03/04/2005] - Vendor Response
[03/04/2005] - Hotfix relased by vendor
[05/04/2005] - Public disclousure

CorryL
corryl80@...il.com
www.x0n3-h4ck.org
Italian Security Team
Fax (+39) 02700520894
Tel (+39) 06452215277
irc.xoned.net #x0n3-h4ck

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