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Imperva DB monitoring

06/01/2017

Imperva Db monitor cannot decrypt data

The below is required as Imperva cannot decrypt ECDH or DH Algorithms

 The below is to be run on the SQL server

Powershell to disable DH, ECDH

# Disable Diffie-Hellman and ECDH

md "HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\ECDH"

Set-ItemProperty -Path "HKLM:SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\ECDH" -Name Enabled -Value 0 -Force

md "HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman"

Set-ItemProperty -Path "HKLM:SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman" -Name Enabled -Value 0

 

# Cipher Suite Order, this may be overridden by group policy

Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002" -Name "Functions" -value "TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_3DES_EDE_CBC_SHA"
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From → Security, Windows

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