IE Drag and Drop Vulnerability

dengel

Posted on 19/8/2004, 21:29

User deleted

Secunia comunica la scoperta di una vulnerabilità su Internet Explorer 5.01 - 5.5 - 6.

Description:
http-equiv has discovered a vulnerability in Microsoft Internet Explorer, which can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to insufficient validation of drag and drop events issued from the "Internet" zone to local resources. This can be exploited by a malicious website to e.g. plant an arbitrary executable file in a user's startup folder, which will get executed the next time Windows starts up.

http-equiv has posted a PoC (Proof of Concept), which plants a program in the startup directory when a user drags a program masqueraded as an image.

NOTE: Even though the PoC depends on the user performing a drag and drop event, it may potentially be rewritten to use a single click as user interaction instead.

La vulnerabilità permette l'esecuzione da remoto di codice ostile sul computer vittima ; perchè sia sfruttata è necessario l'intervento dell'utente, tuttavia è poco confortante che sia stata confermata anche su XP SP2.

Come sempre è preferibile disattivare gli script attivi nell'area Internet di Internet Explorer ( in attesa dell'ennesima patch ).

0 replies since 19/8/2004, 21:29 495 views