App Control Console Inaccessible with 500 Internal Server Error After Updating SQL Server

Products

• Carbon Black App Control (formerly Cb Protection)

Issue/Introduction

• No Access to Console after updating SQLServer with latest CU Patch
• No Access to Console after upgrading the App Control Server Software
• IISreset does not resolve issue
• Reboot of Console Server does not resolve issue
• The following message (Or similar) is seen in the Windows Event Logs ( Level-Error, with Likely Event ID of 4, Source beginning with PHP- ):

  PHP Warning: 'C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll' 14.13 is not compatible with this PHP build linked with 14.29 ("C:\Program Files (x86)\Bit9\Parity Console\php\php-cgi.exe")

Environment

• App Control Server: All Supported Versions
• Microsoft Windows: All Supported Versions

Cause

• Cumulative Update restored older version of vcruntime104.dll as part of its installation/update

Resolution

• Check the versioning of the vcruntime140.dll and replace it if incorrect via Microsoft Visual C++ Redistributable latest supported downloads (May require a Reboot)

Additional Information

• Similar situation after App Control Server Upgrade
• In the Windows Event Logs, an example event may contain

  php[3816]
  PHP Warning: 'C:\WINDOWS\SYSTEM32\VCRUNTIME140.dll' 14.13 is not compatible with this PHP build linked with 14.29 ("C:\Program Files (x86)\Bit9\Parity Console\php\php-cgi.exe")