bugtraq - MailEnable Imapd remote BoF + Exploit [x0n3-h4ck]

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Message-ID: <003101c53a05$42d7e5e0$0100a8c0@EXPANDERSPC>
Date: Tue, 5 Apr 2005 19:31:09 +0200
From: "expanders" <expanders@...ero.it>
To: "Milw0rm" <submit@...w0rm.com>,
	"Vulnwatch" <vulnwatch@...nwatch.org>,
	"bugtraq" <bugtraq@...urityfocus.com>,
	"Full Disclosure" <Full-Disclosure@...ts.grok.org.uk>
Subject: MailEnable Imapd remote BoF + Exploit [x0n3-h4ck]

-=[--------------------------------ADVISORY----------------------
-=[
-=[    MailEnable Enterprise & Pro remote BoF
-=[
-=[  Author: Expanders  [expanders@...il.com]
-=[              CorryL     [corryl80@...il.com]
-=[
-=[                             www.x0n3-h3ck.org
-=[------------------------------------------------------------------------


-=[+] Application:    Mail Enable Imapd ( MEIMAP.exe )
-=[+] Version:        (Enterprise <= 1.04)-(Professional <= 1.54)
-=[+] Vendor's URL:   www.mailenable.com
-=[+] Platform:       Windows
-=[+] Bug type:       Buffer overflow
-=[+] Exploitation:   Remote/Local
-=[-]
-=[+] Author:         Expanders  ~ expanders[at]gmail[dot]com ~
-=[+] 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 ]::..

Imapd service is buffer overflow vulnerable at "A001 AUTHENTICATE <buffer>" command.
Passing a buffer greater than 1016 bytes will overwrite ECX and EAX register allowing remote 
attacker to execute arbitraty code on the vulnerable server.


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

A001 AUTHENTICATE "A"x1024

..::[ Exploit ]::..

Attached or:

http://www.x0n3-h4ck.org/upload/x0n3-h4ck_MailEnable_Imapd.c

..::[ Workaround ]::..

There is no workaround

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

http://www.mailenable.com/hotfix
http://www.mailenable.com/hotfix/MEIMSM-HF050404.zip


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

[02/04/2005] - Vendor notification
[03/04/2005] - Vendor Response
[03/04/2005] - Hotfix relased by vendor
[05/04/2005] - Public disclousure
Content of type "text/html" skipped

Download attachment "x0n3-h4ck_MailEnable_Imapd.c" of type "application/octet-stream" (10596 bytes)

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