2223309 - ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY error in IQ Cockpit - SAP IQ | SAP Knowledge Base Article

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2223309 - ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY error in IQ Cockpit - SAP IQ

Symptom

  • Unable to access the SAP IQ Cockpit site.
     
  • Google Chrome screen shows the following error: 

Server has a weak ephemeral Diffie-Hellman public key
 
ERR_SSL_WEAK_SERVER_EPHEMERAL_DH_KEY

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This error can occur when connecting to a secure (HTTPS) server. It means that the server is trying to set up a secure connection but, due to a disastrous misconfiguration, the connection wouldn't be secure at all!
 
In this case the server needs to be fixed. Google Chrome won't use insecure connections in order to protect your privacy.

Learn more about this problem.

  • Agent.log shows these messages when a connection attempt is made:

2015-09-04 16:36:43,852 [WARN ] [io.nio ] [scc-ui::62999] - javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack?
2015-09-04 16:37:48,466 [WARN ] [io.nio ] [scc-ui::63324] - javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack?
2015-09-04 16:37:48,469 [WARN ] [io.nio ] [scc-ui::63325] - javax.net.ssl.SSLException: Inbound closed before receiving peer's close_notify: possible truncation attack?


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Environment

  • SAP IQ Cockpit IQ 16 SP08 and higher
  • Google Chrome browser 45.0.2454.85

Product

SAP IQ 16.0

Keywords

KBA , BC-SYB-IQ , Sybase IQ , Problem

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