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Adobe related service getPlus_HelperSvc.exe Local Privilege Escalation

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   1   Adobe related service (getPlus_HelperSvc.exe) local elevation of privileges
   2   by Nine:Situations:Group
   3   site: http://retrogod.altervista.org/
   4
   5   description:
   6   Adobe downloader used to download updates for Adobe applications.
   7   Shipped with Acrobat Reader 9.x
   8
   9   vendor: Nos Microsystems
  10
  11   poc:
  12
  13   C:\>sc qc "getPlus(R) Helper"
  14   [SC] GetServiceConfig SUCCESS
  15
  16   SERVICE_NAME: getPlus(R) Helper
  17           TYPE               : 110 WIN32_OWN_PROCESS (interactive)
  18           START_TYPE         : 3   DEMAND_START
  19           ERROR_CONTROL      : 1   NORMAL
  20           BINARY_PATH_NAME   : C:\Programmi\NOS\bin\getPlus_HelperSvc.exe
  21           LOAD_ORDER_GROUP   :
  22           TAG                : 0
  23           DISPLAY_NAME       : getPlus(R) Helper
  24           DEPENDENCIES       : RPCSS
  25           SERVICE_START_NAME : LocalSystem
  26
  27   C:\>cacls "C:\Programmi\NOS\bin\getPlus_HelperSvc.exe"
  28   C:\Programmi\NOS\bin\getPlus_HelperSvc.exe BUILTIN\Users:F <−−−−−−−−−−−−−− [!!!]
  29                                              NT AUTHORITY\SYSTEM:F
  30
  31   The executable file is installed with improper permissions, with "full
  32   control" for Builtin Users; a simple user can replace it with a binary of
  33   choice.
  34   At the next reboot it will run with SYSTEM privileges.
  35
  36   # milw0rm.com [2009−07−20]




Nine:Situations:Group                                                                     07/20/2009

				
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