|Georgi Guninski security advisory #52, 2001
IE GetObject() problems
Patched IE 6.0, somewhat patched 5.5 Win2K
Date: 1 January 2002
This Advisory is Copyright (c) 2001 Georgi Guninski.
You may distribute it unmodified.
You may not modify it and distribute it or distribute parts
of it without the author's written permission.
The information in this advisory is believed to be true based on
experiments though it may be false.
The opinions expressed in this advisory and program are my own and
not of any company. The usual standard disclaimer applies,
especially the fact that Georgi Guninski is not liable for any damages
caused by direct or indirect use of the information or functionality
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responsibility for content or misuse of this advisory or program or
any derivatives thereof.
IE allows reading local files due to a bug in GetObject().
Reading local files may lead to executing arbitrary programs.
GetObject() has a bad security record -
The new bug is quite similar to:
the difference being:
It is funny that directory traversal on a http: URL leads to reading
Disable Active Scripting and never turn it on.
Better, do not use IE in hostile environments such as the internet.
Microsoft was notified on 11 December 2001.
They had 3 weeks to produce a patch but didn't.