Re: Does the Windows AUX bug affect Web servers also?

[jelmer <kuper237 () planet nl>]

> We had to remove the reference with a Windows 2000 bootdisk.

actually you don't have to do this you can "trick" windows by using a UNC
path

you can delete the file by typing

del \\.\C:\COM1

or create a file with an invalid filename like this :

echo bla > \\.\C:\COM1

-- jelmer





----- Original Message ----- 
From: "Peter Kruse" <kruse () krusesecurity dk>
To: "'Richard M. Smith'" <rms () computerbytesman com>;
<full-disclosure () lists netsys com>
Sent: Wednesday, July 09, 2003 8:42 PM
Subject: SV: [Full-disclosure] Does the Windows AUX bug affect Web servers
also?


> Hi Richard,
>
> AFAIK it can´t be done with a http://www.someserver./aux but there´re
> several other ways to exploit this DoS.
>
> It can be done over network shares and anywhere we include HTML and
> scripts (webpages, e-mails, internal documents and so on). I have
> succesfully crashed a server placering a "COMn" reference in a special
> folder. We had to remove the reference with a Windows 2000 bootdisk.
>
> Other browsers are affected as well and at least two (of my knowledge)
> are hit a lot harder than IE. They both cause the system to crash.
>
> Med venlig hilsen // Kind regards
>
> Peter Kruse
> Kruse Security
> http://www.krusesecurity.dk
>
> -----Oprindelig meddelelse-----
> Fra: full-disclosure-admin () lists netsys com
> [mailto:full-disclosure-admin () lists netsys com] På vegne af Richard M.
> Smith
> Sendt: 9. juli 2003 18:50
> Til: full-disclosure () lists netsys com
> Emne: [Full-Disclosure] Does the Windows AUX bug affect Web servers
> also?
>
>
> Is it possible to also crash a Web server hosted on a Windows box using
> a URL something like:
>
>     http://www.somebody.com/aux
>
> If this particular URL is okay, maybe there are other URLs that will
> cause a crash.  For example, POSTing a form to a URL containing AUX.
>
> This problem could be in any Windows Web server such as IIS, Apache,
> ColdFusion, etc..
>
> (I don't have access to a Windows Web server to try this out myself.)
>
> Richard
>
> -----Original Message-----
> From: full-disclosure-admin () lists netsys com
> [mailto:full-disclosure-admin () lists netsys com] On Behalf Of
> xc3ed () phreaker net
> Sent: Wednesday, July 09, 2003 7:39 AM
> To: full-disclosure () lists netsys com
> Cc: KF
> Subject: Re: [Full-disclosure] Internet Explorer 6 DoS Bug
>
>
> duplicated in Windows 2003 Server, datacenter edition, IE v6.0.3790.0
>
> regards, xsr
>
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