IEXPLORE.EXE file version 6.0.2900.2180
MSHTML.DLL file version 6.00.2800.1400
Microsoft Windows XP Home SP2
[Discussion]
Recently, a security professional aliased http-equiv (malware.com) found a vulnerability in Microsoft's new Service Pack (SP2). What
was required to compromise the victim's machine was the dragging of an specially-crafted into a folderview window, and then the clicking
of a button. LongNameVuln is a more efficient way of acheiving this common goal of compromising the system. It removes the extra
step of having to click a button in order to access a page on the local machine. It can be done easily. Using the Related Topics
command of Microsoft's Help ActiveX Control, any page can be loaded into a target frame. Unfortuneatly, only addresses that actually
point to a location can be used. This does not include protocols such as javascript and vbscript. However, we can still break out
of the Internet Zone and open up a page in the local zone. That is what this vulnerability achieves.
The example shows the picture of a garden which includes a carrot. Dragging the carrot to the bottom frame in the browser (set up
to be the outside of the garden) will copy a file to PCHealth directory in C:\windows, which will then be launched, creating another
file in the same directory called Greyhats.hta, which must be launched manually. The directory could easily be changed to shell:startup,
however this is not necissary for this example. This is the same payload as given in NoCeegar on malware.com because my server doesn't
have the capabilities to host the payload file like malware.com does
. View the example at http://freehost07.websamba.com/greyhats/longnamevuln.htm










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