iniNet SpiderControl SCADA Web Server Service 2.02 Insecure File Permissions
Vendor: iniNet Solutions GmbH
Product web page: http://www.spidercontrol.net
Affected version: 2.02.0000
Summary: Modular and automated engineering is provided for HMI and
SCADA. The tools are developed to join a large range of engineering
modules together quickly. We modularize our software, as the mechanics
of a system are modularized today. Easy to visualize with a few clicks.
Desc: SpiderControl SCADA Web Server Service 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) for
'Everyone' and 'Authenticated Users' group making the entire directory
'WWW' and its files and sub-dirs world-writable.
Tested on: Microsoft Windows 7 Professional SP1 (EN)
Microsoft Windows 7 Ultimate SP1 (EN)
Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
@zeroscience
Advisory ID: ZSL-2015-5284
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5284.php
22.10.2015
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C:\WWW>dir
Volume in drive C is Windows
Volume Serial Number is 56F3-8688
Directory of C:\WWW
22/10/2015 10:54 <DIR> .
22/10/2015 10:54 <DIR> ..
22/10/2015 10:55 <DIR> HMI
07/02/2008 23:41 147,968 libnodave.dll
22/10/2015 10:54 <DIR> Manual
07/07/2015 12:03 1,687,552 SCADAControlPanel.exe
07/07/2015 12:03 203,776 ScadaWindowsService.exe
22/10/2015 10:54 3,092 unins000.dat
22/10/2015 10:53 719,496 unins000.exe
07/07/2015 12:07 793,088 ZelsWebServ.dll
22/10/2015 10:54 1,546 ZelsWebServ.xml
22/10/2015 10:55 38,696 ZelsWebServ_log.txt
8 File(s) 3,595,214 bytes
4 Dir(s) 77,683,298,304 bytes free
C:\WWW>cacls *.exe
C:\WWW\SCADAControlPanel.exe Everyone:C
BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
C:\WWW\ScadaWindowsService.exe Everyone:C
BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
C:\WWW\unins000.exe BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
---
C:\Users\joxy>sc qc SCADAServer
[SC] QueryServiceConfig SUCCESS
SERVICE_NAME: SCADAServer
TYPE : 110 WIN32_OWN_PROCESS (interactive)
START_TYPE : 2 AUTO_START
ERROR_CONTROL : 1 NORMAL
BINARY_PATH_NAME : C:\WWW\ScadaWindowsService.exe
LOAD_ORDER_GROUP :
TAG : 0
DISPLAY_NAME : SCADA Server
DEPENDENCIES :
SERVICE_START_NAME : LocalSystem
