APEX Web Service Calls Fail For TLS With in 18.104.22.168 SSL: ORA-28857: Unknown SSL Error
(Doc ID 2033910.1)
Last updated on FEBRUARY 18, 2021
Applies to:Oracle Application Express (APEX) - Version 4.2.6 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.
On : 4.2.4 version of Application Express with the following setup:
Database Version 22.214.171.124
REST Services are connection: TLS 1.2 (Details in screen shot)
An APEX application has been running with an SSL web service successfully. Recently the web service has been modified to use TLS 1.2.
Since that change, the web service requests have been failing with the following error:
All other web service and UTL_HTTP calls run successfully from SQL*Plus and from APEX. This problem is specific to TLS requests.
The vendor has changed their web service from SSL to TLS.
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