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Re: Mozilla Security Advisory 2004-07-08
From: "Berend-Jan Wever" <skylined () edup tudelft nl>
Date: Fri, 9 Jul 2004 03:31:13 +0200

The advisory mentions that combining this with a BoF can result in remote code execution, but they totally forget to 
mention that formatstring exploits, integeroverflows, XSS, SQL injection, etc... might cause the same problems too. I 
bet they just read FD and didn't think for themselves. As far as I can see, this bug allows an attacker to remotely 
abuse any vulnerability a local program might be subject to, thus making any local exploit a possible remote exploit.

Cheers,
SkyLined
----- Original Message ----- 
From: <dveditz () cruzio com>
To: <full-disclosure () lists netsys com>
Sent: Friday, July 09, 2004 00:36
Subject: [Full-disclosure] Mozilla Security Advisory 2004-07-08


Mozilla Security Advisory
July 7, 2004

Summary:    Windows shell: scheme exposed in Mozilla
Products:   Mozilla (Suite)
            Mozilla Firefox
            Mozilla Thunderbird
Fixed in:   Mozilla (Suite) 1.7.1
            Mozilla Firefox 0.9.2
            Mozilla Thunderbird 0.7.2


Description:
    Windows versions of Mozilla products pass URIs using the shell: scheme
    to the OS for handling. The effects depend on the version of windows,
    but on Windows XP it is possible to launch executables in known
    locations or the default handlers for file extensions. It could be
    possible to combine this effect with a known buffer overrun in one
    of these programs to create a remote execution exploit, although
    at this time we have confirmed only denial-of-service type attacks
    (including crashing the system in some cases).

Solution:
    We urge people to install the patch available on mozilla.org or
    install the latest version of the software.

    http://www.mozilla.org/security/shell.html

-Dan Veditz
Mozilla Security Group


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