BugTraq
Bypassing of web filters by using ASCII Jun 21 2006 01:11PM
k huwig iku-ag de (4 replies)
Re: Bypassing of web filters by using ASCII Jun 22 2006 10:08PM
Amit Klein (AKsecurity) (aksecurity hotpop com)
Re: Bypassing of web filters by using ASCII Jun 22 2006 02:57PM
Hubert Seiwert (hubert westpoint ltd uk)
Re: Bypassing of web filters by using ASCII Jun 21 2006 11:57PM
RSnake (rsnake shocking com) (2 replies)
Re: Bypassing of web filters by using ASCII Jun 25 2006 03:42PM
David Huecking (d huecking gmx net)
Am Mittwoch, 21. Juni 2006 15:11 schrieb k.huwig (at) iku-ag (dot) de [email concealed]:
[...]
> Product               : Microsoft InternetExplorer 6
[...]

> Of the tested browsers Firefox 1.5, Opera 8.5 and InternetExplorer 6,
> only the InternetExplorer does this correctly, the others evaluate the
> bit and display the characters as if they were from the character set
> ISO-8859-1. Although the behaviour of the InternetExplorer is the
> correct one, this creates a security risk: the author of a web page can
[...]

>       http://www.iku-ag.de/ASCII
>
> you can find a test page that displays a secret message. IE6 displays
> the text correctly, Firefox 1.5 and Opera 8.5 display glibberish text.
> This page only shows that IE6 displays ASCII-text correctly and does not
> contain any content that a filter should sort out.
[...]

> There is no workaround know to us.
> --
> Kurt Huwig iKu Systemhaus AG http://www.iku-ag.de/ Vorstand Am Römerkastell
> 4 Telefon 0681/96751-0 66121 Saarbrücken Telefax 0681/96751-66 GnuPG
> 1024D/99DD9468 64B1 0C5B 82BC E16E 8940 EB6D 4C32 F908 99DD 9468

Running MS Internet Explorer 6SP1 (German) with wine under Linux does also
display the text like Firefox 1.5 and Konqueror.
http://www.iku-ag.de/ascii.cgi.htm
is also displayed like in the "native" programs (garbage).

...just my 2 cents,
David.
--
Eat, sleep and go running, ;-)
David Huecking.

Encrypted eMail welcome! GnuPG/ PGP-Fingerprint:
3DF2 CBE0 DFAA 4164 02C2  4E2A E005 8DF7 5780 9216

[ reply ]
Re: Bypassing of web filters by using ASCII Jun 22 2006 12:34AM
Kurt Huwig (k huwig iku-ag de)
Re: Bypassing of web filters by using ASCII Jun 21 2006 08:15PM
Fixer (fixer gci net) (1 replies)
Re: Bypassing of web filters by using ASCII Jun 21 2006 10:24PM
Paul (pvnick gmail com) (3 replies)
Re: Bypassing of web filters by using ASCII Jun 22 2006 07:46AM
Amit Klein (AKsecurity) (aksecurity hotpop com) (1 replies)
RE: Bypassing of web filters by using ASCII Jun 23 2006 11:55AM
James C. Slora Jr. (james slora phra com) (3 replies)
Re: Bypassing of web filters by using ASCII Jun 26 2006 05:56PM
Hubert Seiwert (hubert westpoint ltd uk) (1 replies)
RE: Bypassing of web filters by using ASCII Jun 26 2006 07:31PM
James C. Slora Jr. (james slora phra com)
RE: Bypassing of web filters by using ASCII Jun 23 2006 10:12PM
RSnake (rsnake shocking com)
RE: Bypassing of web filters by using ASCII Jun 23 2006 07:23PM
Amit Klein (AKsecurity) (aksecurity hotpop com)
Re: Bypassing of web filters by using ASCII Jun 22 2006 03:40AM
Thor (Hammer of God) (thor hammerofgod com)
Re: Bypassing of web filters by using ASCII Jun 21 2006 11:23PM
Kurt Huwig (k huwig iku-ag de)


 

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