BitRaider Streaming Client 1.3.3.4098 – Local Privilege Escalation

• Exploit Database
• 12 阅读

• 作者： LiquidWorm
  日期： 2014-12-23
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/35590/

• 
  BitRaider Streaming Client 1.3.3.4098 Local Privilege Escalation Vulnerability
  
  
  Vendor: BitRaider, LLC
  Product web page: http://www.bitraider.com
  Affected version: 1.3.3.4098
  
  Summary: BitRaider is a video game streaming and download service.
  
  Desc: BitRaider contains a flaw that leads to unauthorized privileges being gained.
  The issue is due to the program granting improper permissions with the 'F' flag for
  the 'Users' group, which makes the entire 'BitRaider' directory and its sub directories
  and files world-writable. This may allow a local attacker to change an executable file
  with a binary file and gain elevated privileges.
  
  List of executables affected:
  
  o====================================================================================================o
  |Binary/location|Description |
  | ||
  |=============================================================== ====================================|
  | C:\ProgramData\BitRaider\BRSptStub.exe|BitRaider Support Stub|
  |---------------------------------------------------------------|------------------------------------|
  | C:\ProgramData\BitRaider\common\BRException.exe |BitRaider Exception Handler |
  |---------------------------------------------------------------|------------------------------------|
  | C:\ProgramData\BitRaider\common\brwc.exe|BitRaider Distribution Web Client |
  |---------------------------------------------------------------|------------------------------------|
  | C:\ProgramData\BitRaider\support\1.3.3\E02B25FC\BRSptSvc.exe|BitRaider Support Service Core|
  o====================================================================================================o
  
  
  Tested on: Microsoft Windows 7 Professional SP1 (EN)
  
  
  Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
  @zeroscience
  
  
  Advisory ID: ZSL-2014-5217
  Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2014-5217.php
  
  
  17.12.2014
  
  ----
  
  
  C:\Users\user>sc qc BRSptStub
  [SC] QueryServiceConfig SUCCESS
  
  SERVICE_NAME: BRSptStub
  TYPE : 10WIN32_OWN_PROCESS
  START_TYPE : 3 DEMAND_START
  ERROR_CONTROL: 0 IGNORE
  BINARY_PATH_NAME : "C:\ProgramData\BitRaider\BRSptStub.exe"
  LOAD_ORDER_GROUP :
  TAG: 0
  DISPLAY_NAME : BitRaider Mini-Support Service Stub Loader
  DEPENDENCIES :
  SERVICE_START_NAME : LocalSystem
  
  C:\Users\user>icacls "C:\ProgramData\BitRaider\BRSptStub.exe"
  C:\ProgramData\BitRaider\BRSptStub.exe BUILTIN\Users:(F) <--------------------------
   NT AUTHORITY\SYSTEM:(F)
   NT AUTHORITY\Authenticated Users:(F) <-------
   BUILTIN\Administrators:(F)
   NT AUTHORITY\INTERACTIVE:(F) <---------------
   NT AUTHORITY\SERVICE:(F)
   BUILTIN\Guests:(RX)
   BUILTIN\Users:(I)(F) <-----------------------
   NT AUTHORITY\SYSTEM:(I)(F)
   NT AUTHORITY\Authenticated Users:(I)(F) <----
   BUILTIN\Administrators:(I)(F)
   NT AUTHORITY\INTERACTIVE:(I)(F) <------------
   NT AUTHORITY\SERVICE:(I)(F)
   BUILTIN\Guests:(I)(RX)
  
  Successfully processed 1 files; Failed processing 0 files
  
  C:\Users\user>