Wise Care 365 4.27 / Wise Disk Cleaner 9.29 - Unquoted Service Path Privilege Escalation













# Exploit Title: Wisecleaner Software Multiple Unquoted Service Path Elevation of Privilege
# Date: 23/09/2016
# Exploit Author: Tulpa
# Contact: tulpa@tulpa-security.com
# Author website: www.tulpa-security.com
# Vendor Homepage: http://www.wisecleaner.com
# Software Link: http://www.wisecleaner.com/wise-disk-cleaner.html, http://www.wisecleaner.com/wise-care-365.html
# Version: Wise Care 365 4.27, Wise Disk Cleaner 9.29
# Tested on: Windows 7 x86
# Shout-out to carbonated and ozzie_offsec

1. Description:

Two seperate instances of unquoted service path privilege escalation has been discovered. The first instance is within Wise Care 365 4.27 which installs a vulnerable service entitled WiseBootAssistant. The second vulnerability exists when Wise Disk Cleaner 9.29 installs SpyHunter 4. Both of these services run with SYSTEM privileges. This could potentially allow an authorized but non-privileged local user to execute arbitrary code with elevated privileges on the system.

2. Proof

Wise Disk Cleaner 9.29

C:\>sc qc WiseBootAssistant
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: WiseBootAssistant
        TYPE               : 110  WIN32_OWN_PROCESS (interactive)
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\Wise\Wise Care 365\BootTime.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Wise Boot Assistant
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

SpyHunter 4

C:\>sc qc "SpyHunter 4 Service"
[SC] QueryServiceConfig SUCCESS

SERVICE_NAME: SpyHunter 4 Service
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files\Enigma Software Group\SpyHunter\SH4Service.exe
        LOAD_ORDER_GROUP   : Base
        TAG                : 0
        DISPLAY_NAME       : SpyHunter 4 Service
        DEPENDENCIES       :
        SERVICE_START_NAME : LocalSystem

3. Exploit:

A successful attempt would require the local user to be able to insert their
code in the system root path undetected by the OS or other security applications
where it could potentially be executed during application startup or reboot.
If successful, the local user's code would execute with the elevated privileges
of the application.