107 lines
No EOL
5.3 KiB
Text
107 lines
No EOL
5.3 KiB
Text
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Crouzet em4 soft 1.1.04 and M3 soft 3.1.2.0 Insecure File Permissions
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Vendor: Crouzet Automatismes SAS
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Product web page: http://www.crouzet-automation.com
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Affected version: em4 soft (1.1.04 and 1.1.03.01)
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M3 soft (3.1.2.0)
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Summary: em4 is more than just a nano-PLC. It is a leading
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edge device supported by best-in-class tools that enables
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you to create and implement the smartest automation applications.
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Millenium 3 (M3) is easy to program and to implement, it enables
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the control and monitoring of machines and automation installations
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with up to 50 I/O. It is positioned right at the heart of the
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Crouzet Automation range.
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Desc: em4 soft and M3 soft suffers from an elevation of privileges
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vulnerability which can be used by a simple authenticated user that can
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change the executable file with a binary of choice. The vulnerability
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exist due to the improper permissions, with the 'C' flag (Change) for
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'Everyone' group.
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Tested on: Microsoft Windows 7 Professional SP1 (EN)
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Microsoft Windows 7 Ultimate SP1 (EN)
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Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
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@zeroscience
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Advisory ID: ZSL-2016-5310
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Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5310.php
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25.01.2016
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--
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C:\Program Files (x86)\Crouzet automation>cacls "em4 soft"
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C:\Program Files (x86)\Crouzet automation\em4 soft Everyone:(OI)(CI)C
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NT SERVICE\TrustedInstaller:(ID)F
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NT SERVICE\TrustedInstaller:(CI)(IO)(ID)F
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NT AUTHORITY\SYSTEM:(ID)F
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NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Administrators:(OI)(CI)(IO)(ID)F
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BUILTIN\Users:(ID)R
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BUILTIN\Users:(OI)(CI)(IO)(ID)(special access:)
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GENERIC_READ
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GENERIC_EXECUTE
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CREATOR OWNER:(OI)(CI)(IO)(ID)F
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C:\Program Files (x86)\Crouzet automation>cd "em4 soft"
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C:\Program Files (x86)\Crouzet automation\em4 soft>cacls *.exe
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C:\Program Files (x86)\Crouzet automation\em4 soft\em4 soft.exe Everyone:(ID)C
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NT AUTHORITY\SYSTEM:(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Users:(ID)R
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C:\Program Files (x86)\Crouzet automation\em4 soft\unins000.exe Everyone:(ID)C
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NT AUTHORITY\SYSTEM:(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Users:(ID)R
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C:\Program Files (x86)\Crouzet automation\em4 soft>
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================================================================================================
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C:\Program Files (x86)\Crouzet Automatismes>cacls "Millenium 3"
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C:\Program Files (x86)\Crouzet Automatismes\Millenium 3 Everyone:(OI)(CI)C
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NT SERVICE\TrustedInstaller:(ID)F
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NT SERVICE\TrustedInstaller:(CI)(IO)(ID)F
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NT AUTHORITY\SYSTEM:(ID)F
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NT AUTHORITY\SYSTEM:(OI)(CI)(IO)(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Administrators:(OI)(CI)(IO)(ID)F
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BUILTIN\Users:(ID)R
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BUILTIN\Users:(OI)(CI)(IO)(ID)(special access:)
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GENERIC_READ
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GENERIC_EXECUTE
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CREATOR OWNER:(OI)(CI)(IO)(ID)F
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C:\Program Files (x86)\Crouzet Automatismes>cd "Millenium 3"
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C:\Program Files (x86)\Crouzet Automatismes\Millenium 3>cacls *.exe
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C:\Program Files (x86)\Crouzet Automatismes\Millenium 3\M3 soft.exe Everyone:(ID)C
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NT AUTHORITY\SYSTEM:(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Users:(ID)R
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C:\Program Files (x86)\Crouzet Automatismes\Millenium 3\unins000.exe Everyone:(ID)C
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NT AUTHORITY\SYSTEM:(ID)F
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BUILTIN\Administrators:(ID)F
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BUILTIN\Users:(ID)R
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C:\Program Files (x86)\Crouzet Automatismes\Millenium 3> |