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ExecXmlConfig, ExecXmlFile and ComPlusInstallExecute CAs expose sensitive data in log file #4956

wixbot opened this Issue Nov 12, 2015 · 4 comments


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wixbot commented Nov 12, 2015

Greetings, Gurus of Installer!

I'd like to make request to mark ExecXmlConfig, ExecXmlFile and ComPlusInstallExecute custom actions with Hidden Target flag as it is done for ConfigureIIs7Exec, for instance.

We have CA to encrypt configs, but we use XmlConfig to put passwords there. We also install COM+ application with provided user credentials.

There is a partial _workaround_ for Xml CAs: you have to explicitly define ExecXmlConfig and ExecXmlFile properties with Hidden attribute to hide their values in the property dump at the end of log; and create stab XmlConfig/XmlFile nodes before the one with sensitive data till the value of ExecXmlConfig and ExecXmlFile properties are truncated enough when CA is executed.

I didn't find any workarounds for ComPlusInstallExecute CA though.

I know this is a veeeery old issue, but hey! better late than never, right? Btw congrats with 3.10 release!

Originally opened by verba.vadim


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wixbot commented Nov 14, 2015

The workaround of marking the appropriate properties as hidden works today. The feature request is to create a set of parallel "secure" custom action entry points that hide everything by default.

Release changed from v3.10 to v3.x
Type changed from Bug to Feature


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wixbot commented Nov 17, 2015

No, marking property as hidden does not solve problem completely. You can still see CustomActionData value when CA is called. For instance:

Executing op: CustomActionSchedule(Action=ExecXmlConfig,ActionType=3073,Source=BinaryData,Target=ExecXmlConfig,CustomActionData=1�C:\Program Files (x86)\Google\Google SketchUp 6\Plugins\IESLink\Dialogs\IESveInterfaceParameters.xml�3�/IESInterface/IESveLocation���C:\Program
Files (x86)\IES\VE 59\apps�0)

Originally posted by verba.vadim
Status changed from Open to Untriaged

@wixbot wixbot added this to the v3.x milestone Dec 20, 2015


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fyodorkor commented Jan 19, 2017

All deferred Custom Actions that can have sensitive information must be marked with attribute 'HideTarget'. I would like to fix this defect.

@barnson barnson modified the milestones: v3.11, v3.x Jan 31, 2017


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barnson commented Jan 31, 2017

@barnson barnson closed this Feb 12, 2017

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