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App Control: Error[Hash mismatch] on TrustedCertList.pem and/or KeyChain.json file

App Control: Error[Hash mismatch] on TrustedCertList.pem and/or KeyChain.json file

Environment

  • App Control Server: 8.7.0 and Higher
  • App Control Agent: 8.7.0 and Higher

Symptoms

Trace.bt9 log (created in high debugging) shows:
Failed to obtain file from 'https://AppServer-ResourceDownloadLocation/TrustedCertList.pem': Hash mismatch Target[C:\ProgramData\Bit9\Parity Agent\TrustedCertList.pem.tmp]
Failed to obtain file from 'https://AppServer-ResourceDownloadLocation/TrustedCertList.pem/keychain.json': Hash mismatch Target[C:\ProgramData\Bit9\Parity Agent\keychain.json.tmp]

Cause

There is an issue with the file itself, the hash that is being downloaded is not what the agent expected thus it keeps retrying

Resolution

Regenerate the files:
  • TrustedCertList.pem: to generate a new PEM file there is two options: 
    >> Automatic Repair:
    Verify that the Trusted Communication Certificates panel is visible under Administration > System Configuration > Security tab
    In the Trusted Communication Certificates panel Disable and Re-enable one of the certificates listed
    Restart App Control Server Services (Optional)
    
    or
    
    >> Manual Rebuild:
    On the App Control Server delete the following file:
    C:\Program Files (x86)\Bit9\Parity Server\Hostpkg\TrustedCertList.pem
    Restart the App Control Server Service
  • KeyChain.json: to generate a new JSON file there is two options: 
    >> Automatic Repair:
    Console >> Gear Icon >> System Configuration >> Security Tab
    Last section: Communication Key
    Click on Regenerate button
    
    or
    
    >> Manual Rebuild:
    On the App Control Server delete the following file:
    C:\Program Files (x86)\Bit9\Parity Server\Hostpkg\keychain.json
    Restart the App Control Server Service

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Author:
Creation Date:
‎01-03-2023
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