From: CorryL (corrylsitoverde.com)
Date: Tue Apr 05 2005 - 15:29:26 CDT

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-=[---------------------ADVISORY---------------------------]=-
-=[
                   ]=-
-=[ MailEnable Enterprise & Pro remote DOS ]=-
-=[
                   ]=-
-=[ Author: CorryL [corryl80gmail.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
corryl80gmail.com
www.x0n3-h4ck.org
Italian Security Team
Fax (+39) 02700520894
Tel (+39) 06452215277
irc.xoned.net #x0n3-h4ck

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