To view the entries of the embedded LDAP server through an LDAP client browser, first of all you have to change the embedded LDAP credentials:
1. Access WLS admin console
2. Expand the Domain node.
3. Select the Security-->Embedded LDAP tab.
4. Change the Credential attribute from its generated value to a new password
5. Click SAVE.
6. At last, reboot WebLogic Server.
Now configure a new connection in the LDAP browser (as a suggestion, I use Apache Directory Studio based on Eclipse).
Use the http server port 7001 (7002 if SSL is being used), "dc=[UCM_DOMAIN_NAME]" as the base dn, cn=Admin as the ldap administration user with the newly created password.