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Hacking techniques include penetration testing, network security, reverse cracking, malware analysis, vulnerability exploitation, encryption cracking, social engineering, etc., used to identify and fix security flaws in systems.

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iniNet SpiderControl PLC Editor Simatic 6.30.04 Insecure File Permissions


Vendor: iniNet Solutions GmbH
Product web page: http://www.spidercontrol.net
Affected version: 6.30.04 (Build 6300400)

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 PLC Editor Simatic 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 'F' flag (Full) for
'Everyone' group, and 'C' flag (Change) for 'Authenticated Users' group
making the entire directory 'PLCEditorSimatic_6300400' 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-2015-5283
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2015-5283.php


22.10.2015

--


C:\SpiderControl\PLCEditorSimatic_6300400>cacls PLCEditorSimatic.exe
C:\SpiderControl\PLCEditorSimatic_6300400\PLCEditorSimatic.exe Everyone:(ID)F
                                                               BUILTIN\Administrators:(ID)F
                                                               NT AUTHORITY\SYSTEM:(ID)F
                                                               BUILTIN\Users:(ID)R
                                                               NT AUTHORITY\Authenticated Users:(ID)C


C:\SpiderControl\PLCEditorSimatic_6300400>dir
 Volume in drive C is Windows
 Volume Serial Number is 56F3-8688

 Directory of C:\SpiderControl\PLCEditorSimatic_6300400

22/10/2015  10:10    <DIR>          .
22/10/2015  10:10    <DIR>          ..
09/05/2012  14:03               379 fontconfig.txt
22/10/2015  10:10    <DIR>          HTML5Comp
22/10/2015  10:10    <DIR>          HWSpecific
24/06/2015  18:42           386,812 IMasterSimatic6_30_04.jar
22/10/2015  10:10    <DIR>          ImportNConvertComp
22/10/2015  10:10    <DIR>          MacroDlgComp
22/10/2015  10:10    <DIR>          MacroDlgRuntime
22/10/2015  10:10    <DIR>          MacroLib
22/10/2015  10:10    <DIR>          MacroLibTempFiles
26/04/2005  15:26               320 MsgBox.teq
22/10/2015  10:10    <DIR>          News_ReleaseNotes
06/06/2012  11:06                81 PLCEditorExtraBatch.bat
11/01/2013  12:29               727 PLCEditorKey.spl
02/07/2015  22:58         7,997,440 PLCEditorSimatic.exe
26/11/2014  19:04             3,806 PLCPPOCheckCfgSimaticPLC.xml
02/07/2015  18:25         2,958,336 PLC_FontGenerator.exe
22/10/2015  10:10    <DIR>          Projects
17/06/2015  10:58            34,275 PropWndDescript.xml
25/04/2014  16:55           104,254 s7api.jar
18/05/2015  12:28            42,478 ScadaDescript.xml
10/01/2011  15:09               208 ScadaPPOList.csv
22/10/2015  10:10    <DIR>          SCUtils
09/02/2015  13:27             8,242 SimaticDefaultSpiderHWProfile.shp
01/07/2015  16:36         2,693,569 SimaticPLCHelp.chm
22/10/2015  10:30    <DIR>          SimulateRuntime
22/10/2015  10:10    <DIR>          SimulationComp
06/09/2012  11:13            65,536 SpiderLink1.dll
06/09/2012  11:13            65,536 SpiderLink2.dll
06/09/2012  11:13            65,536 SpiderLink3.dll
06/09/2012  11:13            65,536 SpiderLink4.dll
02/07/2015  18:26           265,216 SpiderObserver.dll
02/07/2015  18:25           269,824 SpiderOPCBrowser.dll
02/07/2015  23:42           483,328 SPSVarSelectorCsv.dll
02/07/2015  18:26           430,080 SPSVarSelectorTpy.dll
22/10/2015  10:10    <DIR>          SVGComp
22/10/2015  10:10            86,988 unins000.dat
22/10/2015  10:10           736,929 unins000.exe
10/01/2011  15:05                28 ZelsCfg.csv
22/10/2015  10:10    <DIR>          ZipComp
              25 File(s)     16,765,464 bytes
              16 Dir(s)  77,686,059,008 bytes free

C:\SpiderControl\PLCEditorSimatic_6300400>cd ..

C:\SpiderControl>cacls PLCEditorSimatic_6300400
C:\SpiderControl\PLCEditorSimatic_6300400 Everyone:(OI)(CI)F
                                          BUILTIN\Administrators:(ID)F
                                          BUILTIN\Administrators:(OI)(CI)(IO)(ID)F
                                          NT AUTHORITY\SYSTEM:(ID)F
                                          NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(ID)F
                                          BUILTIN\Users:(OI)(CI)(ID)R
                                          NT AUTHORITY\Authenticated Users:(ID)C
                                          NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C