Adobe related service (getPlus_HelperSvc.exe) local elevation of privileges Jul 20 2009 09:13AM
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Adobe related service (getPlus_HelperSvc.exe) local elevation of privileges
by Nine:Situations:Group

description:
Adobe downloader used to download updates for Adobe applications.
Shipped with Acrobat Reader 9.x

vendor: Nos Microsystems

poc:

C:\>sc qc "getPlus(R) Helper"
[SC] GetServiceConfig SUCCESS

SERVICE_NAME: getPlus(R) Helper
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 3 DEMAND_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\Programmi\NOS\bin\getPlus_HelperSvc.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : getPlus(R) Helper
DEPENDENCIES : RPCSS
SERVICE_START_NAME : LocalSystem

C:\>cacls "C:\Programmi\NOS\bin\getPlus_HelperSvc.exe"
C:\Programmi\NOS\bin\getPlus_HelperSvc.exe BUILTIN\Users:F <-------------- [!!!]
NT AUTHORITY\SYSTEM:F

The executable files is installed with improper permissions, with "full
control" for Builtin Users; a simple user can replace it with a binary of
choice.
At the next reboot it will run with SYSTEM privileges.

original url: http://retrogod.altervista.org/9sg_adobe_local.html

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