13.4 & 13.5 : How to Disable Weak SSLCipherSuites in Enterprise Manager 13.4/13.5 Cloud Control (Doc ID 2663483.1)

Last updated on OCTOBER 30, 2023

Applies to:

Goal

This document explains steps to disable weak SSLCipherSuites used by the EM 13.4 & 13.5 OMS, Agent and WLS.
This procedure is useful if a security policy determines usage of only the strong cipher suites for the communication between the OMS and Agent, for EM Console access or if a security scan reports a Weak CBC Mode Vulnerability for EM components.

If you want to disable the weak cipher suites to address any security exposure, then check the information listed below:

1. Collect the scan report and note the port number on which the exposure is reported.

2. Check the EM process running on that port, by referring to port numbers in <EM INSTANCE HOME>/em/EMGC_OMS1/emgc.properties file.

3.For EM version 13.1 to 13.3, refer to document below
13c: How to Disable Weak SSLCipherSuites in Enterprise Manager 13c Cloud Control (<Note 2138391.1>)

4.The following variable paths are used in this note:

<EM_INSTANCE_BASE> = Base Location where EM OMS is installed
<MIDDLEWARE HOME> = <EM_INSTANCE_BASE>/middleware
<OMS_HOME> = <MIDDLEWARE HOME>/bin
<GCDOMAIN HOME> = <EM_INSTANCE_BASE>/gc_inst/user_projects/domains/GCDomain/

Solution

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