>>Outline<< <qoute> I was about to put on a home page right after I discovered it [and still had a hope that I will be that one who will finally destroy the world :>]: </quote> Well i dont know if it will destroy the world, but sure enough it's enough to destory a small portion off it :) Actually i found the "hole" adam discovered myself a few months back but didn't think it was particularly world shocking at the time so i didnt even bother to report it (silly me) , Over the course of the last moths I did some other research and this one was forgotten untill i read adams post this morning and made the connection with some other research I did. It does infact allow you to run code of your choosing on a victims machine by creating a specially crafted webpage and sound scheme file >>Explaination and example<< I have created an example exploit on http://www.xs4all.nl/~jkuperus/icq/icq.htm that starts a little flame program It works as followed the default action for icq soundscheme (scm) files is open it places the wav files included with the scm file in a known location on the hard disk. flame.scm wil be downloaded and installed in C:\Program Files\ICQ\Sounds\flame[1] the scm file i use creates a auth.wav file . In reality however this is not a wav file but a mht (mail archive file) with en embeded base64 encoded executable then i use one of the many available local code execution vulnerabilities found in internet explorer recently to execute the embedded binary with this url : mhtml:file:///C:/Program%20Files/ICQ/Sounds/flame/Auth.wav!file:///C:/fire.e xe I dont think its necisary to use one of ie's exploit as you can also call html files in the mht archive, But for some reason i wasn't able to get this to work right away. >>Workaround << For a short term solution open explorer (the file manager not the browser) go to the file types tab in tools > folder options locate the scm extention and change the default behaviour to prompt before download In the long term icq will have to use something like random foldernames for soundschemes to prefent this from happening
This archive was generated by hypermail 2b30 : Tue Jul 16 2002 - 15:03:35 PDT