Self-Executing HTML: Internet Explorer 5.5 and 6.0 Part II

Type securityvulns
Reporter Securityvulns
Modified 2003-02-26T00:00:00


Tuesday, February 25, 2003

We are delighted to learn that the original self-executing html file, from June 1 2002 is now fixed with the most current of the many patches for the Internet Explorer series of browsers. See:


The following file is an html file comprising both scripting and an executable [*.exe].

We inject scripting and an executable into the html file which is designed to point back to the executable in the html file and execute it. Provided the html file is an html file, Internet Explorer 5.5 and 6.0 will execute it.

Because it is an html file proper, Internet Explorer opens it. The scripting inside is then parsed and fired. That scripting is pointing back to the same executable file with our original codebase object from the year 2000 and because it is a self-executing html file, it executes !

Tested IE5.5 and IE6. Fully self-contained harmless *.exe:

Be aware of html files out there.

Key Words: Trust it's Worthy so Think it's Tank silly obvious