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Fitbit Connect Service - Unquoted Service Path Privilege Escalation

Author
Ross Marks
Risk
[
Security Risk High
]
0day-ID
0day-ID-25453
Category
local exploits
Date add
08-10-2016
Platform
windows
Fitbit Connect Service: https://www.fitbit.com/
By Ross Marks:          http://www.rossmarks.co.uk
Exploit-db:             https://www.exploit-db.com/author/?a=8724
Category:               Local
Tested on:              Windows 10 x86/x64
  
1) Unquoted Service Path Privilege Escalation 
  
Fitbit connect installs as a service with an unquoted service path running with SYSTEM privileges.
This could potentially allow an authorized but non-privileged localuser to execute arbitrary code with elevated privileges on the system.
  
A successful attempt would require the local attacker must insert an executable file in the path of the service.
Upon service restart or system reboot, the malicious code will be run with elevated privileges.
  
PoC:
  
C:\>sc qc "Fitbit Connect"
[SC] QueryServiceConfig SUCCESS
  
SERVICE_NAME: Fitbit Connect
        TYPE               : 10  WIN32_OWN_PROCESS
        START_TYPE         : 2   AUTO_START
        ERROR_CONTROL      : 1   NORMAL
        BINARY_PATH_NAME   : C:\Program Files (x86)\Fitbit Connect\FitbitConnectService.exe
        LOAD_ORDER_GROUP   :
        TAG                : 0
        DISPLAY_NAME       : Fitbit Connect Service
        DEPENDENCIES       :
        SERVICE_START_NAME : NT AUTHORITY\NetworkService

#  0day.today [2024-09-28]  #