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Category:   Application (Web Browser)  >   Opera Vendors:   Opera Software
Opera Input Validation Error in Processing MIME Content-Type/Content-Displosition Headers Lets Remote Users Spoof the File Download Dialog
SecurityTracker Alert ID:  1012480
SecurityTracker URL:  http://securitytracker.com/id/1012480
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Updated:  Dec 13 2004
Original Entry Date:  Dec 11 2004
Impact:   Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.54, possibly other versions
Description:   A vulnerability was reported in Opera. A remote user may be able to spoof the download dialog box to cause the target user to execute a malicious file.

Secunia Research reported that the browser does not properly validate the filename and the MIME Content-Type header. A remote user can create a specially crafted Content-Disposition and Content-Type header containing '.' characters and ASCII character code 160 to spoof the dialog box.

Version 7.54 for Windows is affected. Other versions and platforms may also be affected.

Impact:   A remote user can create HTML that, when loaded by the target user, will spoof the download dialog box. As a result, the target user may be tricked into downloading and executing a malicious file.
Solution:   The vendor has issued a security update (7.54u1), available at:

http://www.opera.com/download/

Vendor URL:  www.opera.com/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  BeOS, Linux (Any), Apple (Legacy "classic" Mac), QNX, UNIX (FreeBSD), UNIX (macOS/OS X), UNIX (Solaris - SunOS), Windows (Any)
Underlying OS Comments:  Tested on Windows

Message History:   None.


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