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Cisco Bug: CSCvi73390 - UCCX : UCCX as Client is not sharing SHA256 Ciphers when API is called via SCRIPT 10.6(SU3) TLS 1.2

Last Modified

Feb 06, 2019

Products (1)

  • Cisco Unified Contact Center Express

Known Affected Releases


Description (partial)

Main purpose of upgrading UCCX 10.6(SU3), would be for  UCCX to Support TLS 1.2 as default.

Although we are defaulting TLS 1.2 for 10.6 su3, UCCX still  does not advertise SHA 256  Cipher Suites.

Which leads into SSLHandshake when Scripts are configured to execute API's.

{API_Response, java.lang.String, Received fatal alert: handshake_failure}

UCCX Functions as a Client version 10.6(SU3).... ONLY Newer versions already SHA256 in combination with  TLS 1.2  

When the UCCX functions as a client, it requests a third party server to invoke a service or obtains information

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