Bugtraq mailing list archives
Re: File extensions spoofable in MSIE download dialog
From: "cube" <chef () cube blinx de>
Date: Tue, 4 Dec 2001 19:11:59 +0100
Von: chef [mailto:chef () cube blinx de] Gesendet: Donnerstag, 29. November 2001 19:03Von: StatiC [mailto:static () tampabay rr com] Gesendet: Donnerstag, 29. November 2001 03:52 I was playing with apache configs a few months ago and noticed a similar issue with IE5.5. The procodure below will cause IE5.5 to display the open dialog for readme.txt but once opened, it executes immediately on IE5.5 sp2 with no hint that it is really getting an executable file called calc.exe. I only tested it with IE5.5.I testet it right now, with IE6; Q312461 / WinXP and i think there is no problem at all. First a question for text.txt pops up and when i say "open" a second message with question for save / open pops up. This second popup tells the right name "calc.exe" . Finally when i say "open" it opens the calculator. For testing: http://www.geilerserver.de/text.txtWhy does microsoft think it is wise to trust the filename in the url over what the header content-type is set to for display purposes since the content-type seems to take priority for what will really happen with the file.I think that's only a Problem of older Versions.
Hello, I tryed with Win98 5.5 SP2; Q312461 and can confirm the "Sec. hole" Only the first "text.txt" dialog pop-up's and if i choose "open" the "calc.exe" will be executed. It crashes on win98, becouse it's from XP, but thats another thing. ^cUbE^
Current thread:
- Re: File extensions spoofable in MSIE download dialog static (Dec 02)
- <Possible follow-ups>
- Re: File extensions spoofable in MSIE download dialog cube (Dec 05)
- RE: File extensions spoofable in MSIE download dialog Yngve Ã…dlandsvik (Dec 12)