eAccelerator encoder files backup Vulnerability

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eAccelerator encoder files backup Vulnerability

1.Description
eAccelerator is a free open-source PHP accelerator, optimizer, and dynamic 
content cache. It increases the performance of PHP scripts by caching them in 
their compiled state, so that the overhead of compiling is almost completely 
eliminated. It also optimizes scripts to speed up their execution. eAccelerator 
typically reduces server load and increases the speed of your PHP code by 1-10 
times.

2. The Vulnerability

eAccelerator has a function which encode php source in encoder.php.
You can backup all system files to specify directory or specify files.Of course 
you can upload image to Web Server and backup it to the web  directory
so you can ...........

3.II. Disclosure Timeline
2009/06/29  Vendor contact.
2009/06/30  Public Disclosure.

4. Thanks
all of Whitehat Community's friend && Great Milw0rm!
2009/06/30 by cnbird

Sorry my bad english!