Yes - you can find the CU in two ways.
The most accurate is to login to the OTM server directly and view the $OTM_HOME/glog/config/glog.properties file:
Code:
#--------------------------------------------------------------------
# Base Install Settings
#--------------------------------------------------------------------
# GC3 version
glog.software.version=OTMv55
glog.software.patch.version=OTMv55-CU03
glog.software.installtype=WebAppServer
The second way is to log into the OTM Web interface and click the "i" button in the center of the upper frame.
Picture 2.png
You care about the Software Build Number, Software Patch Version and Database Patch Version.
Picture 1.png
Currently, I'm not aware of any way to determine the RU version of an OTM instance, since the patch is installed differently and doesn't modify the glog.properties file.
Thanks,
Chris