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Native Instruments Service Center 2.2.5 Local Privilege Escalation Vulnerability
来源:http://www.zeroscience.mk 作者:LiquidWorm 发布时间:2010-11-22  

 Native Instruments Service Center 2.2.5 Local Privilege Escalation Vulnerability


 Vendor: Native Instruments GmbH
 Product web page: http://www.native-instruments.com
 Affected version: 2.2.5 (R596)

 Summary: The NI Service Center is a service used for Product Activation.

 Desc: The Native Instruments's Service Center suffers from an elevation of
 privileges vulnerability which can be used by a simple user that can change
 the executable file with a binary of choice. The vulnerability exist due to
 the improper permissions, with the "C" flag (Change(write)) for "Everyone",
 for the installed files ServiceCenter.exe and Reloader.exe.

 Tested on: Microsoft Windows XP Professional SP3 (English)


 Vulnerability discovered by: Gjoko 'LiquidWorm' Krstic
 liquidworm gmail com
 Zero Science Lab - http://www.zeroscience.mk


 Advisory ID: ZSL-2010-4981
 Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2010-4981.php

 06.11.2010


 PoC:

----------------------------------------------------------------------------

 C:\Program Files\Native Instruments\Service Center>dir
  Volume in drive C has no label.
  Volume Serial Number is 7C64-FE80

  Directory of C:\Program Files\Native Instruments\Service Center

 07.11.2010  19:52    <DIR>          .
 07.11.2010  19:52    <DIR>          ..
 05.11.2010  17:58    <DIR>          conf
 05.11.2010  17:58    <DIR>          Documentation
 05.11.2010  17:57           738.632 Reloader.exe
 05.11.2010  17:58        10.650.440 ServiceCenter.exe
                2 File(s)     11.389.072 bytes
                4 Dir(s)   9.880.768.512 bytes free

 C:\Program Files\Native Instruments\Service Center>cacls ServiceCenter.exe
 C:\Program Files\Native Instruments\Service Center\ServiceCenter.exe BUILTIN\Administrators:F
                                                                      Everyone:C
                                                                      NT AUTHORITY\SYSTEM:F


 C:\Program Files\Native Instruments\Service Center>cacls Reloader.exe
 C:\Program Files\Native Instruments\Service Center\Reloader.exe BUILTIN\Administrators:F
                                                                 Everyone:C
                                                                 NT AUTHORITY\SYSTEM:F


 C:\Program Files\Native Instruments\Service Center>

----------------------------------------------------------------------------


 
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