full-disclosure - Buffer-overflow in Quicktime Player 7.3.1.70

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Message-Id: <20080110194517.b871dcb2.aluigi@autistici.org>
Date: Thu, 10 Jan 2008 19:45:17 +0100
From: Luigi Auriemma <aluigi@...istici.org>
To: bugtraq@...urityfocus.com, bugs@...uritytracker.com,
	news@...uriteam.com, full-disclosure@...ts.grok.org.uk, vuln@...unia.com,
	packet@...ketstormsecurity.org
Subject: Buffer-overflow in Quicktime Player 7.3.1.70

#######################################################################

                             Luigi Auriemma

Application:  Quicktime Player
              http://www.apple.com/quicktime
Versions:     <= 7.3.1.70
Platforms:    Windows and Mac
Bug:          buffer-overflow
Exploitation: remote
Date:         10 Jan 2008
Thanx to:     swirl for the help during the re-testing of the bug
Author:       Luigi Auriemma
              e-mail: aluigi@...istici.org
              web:    aluigi.org

#######################################################################

1) Introduction
2) Bug
3) The Code
4) Fix

#######################################################################

===============
1) Introduction
===============

Quicktime is a well known media player developed by Apple.

#######################################################################

======
2) Bug
======

The problem is a buffer-overflow which happens during the filling of
the LCD-like screen containing info about the status of the connection.

For exploiting this vulnerability is only needed that an user follows
a rtsp:// link, if the port 554 of the server is closed Quicktime will
automatically change the transport and will try the HTTP protocol on
port 80, the 404 error message of the server (other error numbers are
valid too) will be visualized in the LCD-like screen.

During my tests I have been able to fully overwrite the return address
anyway note that the visible effects of the vulnerability could change
during the usage of the debugger (in attaching mode it's everything
ok).

#######################################################################

===========
3) The Code
===========

http://aluigi.org/poc/quicktimebof.txt

  nc -l -p 80 -v -v -n < quicktimebof.txt

and then

  QuickTimePlayer.exe rtsp://127.0.0.1/file.mp3

#######################################################################

======
4) Fix
======

No fix

#######################################################################

--- 
Luigi Auriemma
http://aluigi.org

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