Realtek High Definition Audio Driver 6.0.1.6730 Privilege Escalation

2016-10-20T00:00:00
ID PACKETSTORM:139260
Type packetstorm
Reporter Joey Lane
Modified 2016-10-20T00:00:00

Description

                                        
                                            `# Exploit Title: Realtek High Definition Audio Driver - Unquoted Service Path Privilege Escalation  
# Date: 10/19/2016  
# Exploit Author: Joey Lane  
# Version: 6.0.1.6730  
# Tested on: Windows 7 Professional  
  
The Realtek High Definition Audio Driver installs a service with an unquoted service path.  
This enables a local privilege escalation vulnerability. To exploit this vulnerability,  
a local attacker can insert an executable file in the path of the service.  
Rebooting the system or restarting the service will run the malicious executable  
with elevated privileges.  
  
  
This was tested on version 6.0.1.6730, but other versions may be affected as well.  
  
  
---------------------------------------------------------------------------  
  
C:\>sc qc RtkAudioService   
[SC] QueryServiceConfig SUCCESS   
  
SERVICE_NAME: RtkAudioService   
TYPE : 10 WIN32_OWN_PROCESS   
START_TYPE : 2 AUTO_START   
ERROR_CONTROL : 1 NORMAL   
BINARY_PATH_NAME : C:\Program Files\Realtek\Audio\HDA\RtkAudioService64.exe   
LOAD_ORDER_GROUP : PlugPlay   
TAG : 0   
DISPLAY_NAME : Realtek Audio Service   
DEPENDENCIES :   
SERVICE_START_NAME : LocalSystem  
  
---------------------------------------------------------------------------  
  
  
EXAMPLE:  
  
Using the BINARY_PATH_NAME listed above as an example, an executable named  
"Program.exe" could be placed in "C:\", and it would be executed as the  
Local System user next time the service was restarted.  
  
  
`