bugtraq - RE: Remote Buffer Overflow in MailEnable HTTPMail

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Message-ID: <369BFC2283814412A18AF5B9B6F05C.MAI@mailenable.com>
Date: Sun, 16 May 2004 22:29:08 +1000
From: "MailEnable Sales" <info@...lenable.com>
To: <Oliver@...yhat.de>, <bugtraq@...urityfocus.com>
Subject: RE: Remote Buffer Overflow in MailEnable HTTPMail

Hi,

Thanks for the email. This error was not an overflow issue but a bug in the
service (i.e. the error would cause the service to stop, but could the
exploiter could not exploit this further or run code on the server).

A fix for the bug can be found at:

http://www.mailenable.com/hotfix

Thanks
Peter Fregon
MailEnable Pty. Ltd.

-----Original Message-----
From: Oliver@...yhat.de [mailto:Oliver@...yhat.de] 
Sent: Saturday, 15 May 2004 10:41 PM
To: bugtraq@...urityfocus.com
Cc: info@...lenable.com
Subject: Remote Buffer Overflow in MailEnable HTTPMail

Regarding to the heap overflow vulnerability of MailEnable  HTTPMail
(http://www.securityfocus.com/bid/10312), i installed the latest hotfix
(http://mailenable.com/hotfix/MEHTTPS.zip), and found an additional
overflow.

Sending a request like:

c:\telnet localhost 8080
   GET / HTTP/1.0
   Authorization: A

Crashes the services. The overflow seems to occur in the Authorization
header variable. A single character will lead to the crash.

I did no further research in order to fully exploit this vuln. A more
detailed readme can be found on my website:
www.oliverkarow.de/research/MailWebHTTPAuthCrash.txt