Dear Steffen Kluge, This is old news reported long time ago by ben moeckel (ben.moeckel at online.de), see http://www.security.nnov.ru/advisories/content.asp
9. Bypassing filters with special characters There are some characters client application may ignore silently. For Example, for HTML browsers: 0, 9, 10, 13, 173 for Opera 13, 10, 9, 0 for Internet Explorer by inserting characters with this codes into document it's possible to hide some dangerous tags from content filter. Reported by ben.moeckel at online.de --Friday, September 16, 2005, 10:25:06 AM, you wrote to [email protected]: SK> On Tue, 2005-09-13 at 23:24 +0200, [EMAIL PROTECTED] wrote: >> Internet Explorer ignores NUL characters >> -- i.e. ascii characters with the value 0x00 -- most >> security software does not. SK> Interesting. Did you test this with Outlook as well? SK> Cheers SK> Steffen. -- ~/ZARAZA Есть там версии Отелло, где Дездемона душит Мавра. (Лем) _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
