The document discusses middleware, including what it is, common vendors, where it stands architecturally, types of middleware, vulnerabilities, and the importance of patching. Middleware is software that connects applications and lies between the OS and applications, supporting distributed business applications. Common vendors include Oracle, and middleware can use RPC, message-oriented, object-oriented like CORBA, or Java technologies. It is important to middleware's role and to patch vulnerabilities.

2. Agenda
• what is Middleware?
• Vendors for Middleware?
• Where it stands in a picture?
• Types of Middleware?
• Vulnerabilities in Middleware?
• Importance of middleware patching?

3. What is Middleware ?
What is Middleware?
Middleware is the software that connects software components or enterprise applications. Middleware is the
software layer that lies between the operating system and the applications on each side of a distributed
computer network Typically, it supports complex, distributed business software applications.
https://docs.oracle.com/cd/E15523_01/core.1111/e10103/intro.htm#BABEICDD
Servers / Client This is middleware in my understanding.. 

4. Vendors for Middleware?

5. Where Middleware stands in picture
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6. Where Middleware stands in picture
KERNEL
Network OS Service
Middleware
Distributed Application

7. Types of Middleware?
OBJECT Oriented Middleware
RPC (remote procedure call)
MOM Message oriented Middleware
Event based Middleware

8. RPC (remote procedure call)
http://p.motionelements.com/stock-video/nature/me705539-inside-mcdonald-s-restaurant-hd-a0252.jpg

9. RPC (remote procedure call)
APPLICATION
CALL(function)
CLIENT STUB
marshalling
(network portable format)
RPC RPC
SERVER STUB
unmarshalling
Function execute
and result
PROS
* Distributed application
* can call any function from
anywhere
CONS
• Platform Dependent
• Language Dependent
RPC

10. RPC call
Live Example RPC

11. OBJECT Oriented Middleware (ORB)
CORBA The Common Object Request Broker Architecture

12. OBJECT Oriented Middleware (ORB)
CORBA The Common Object Request Broker Architecture BY OMG Group
PROS
• Platform Independent
• Language Independent
• ORB :- Object request broker
• IIOP :- internet inter operable protocol.
APPLICATION
CALL(function)
CLIENT STUB
ORB ORB
Skeleton
Function execute
and result
IIOP :- internet inter operable protocol.
IDL

13. Live Example ORB

14. COM/DCOM
PROS
• MSIDL:- Microsoft IDL
• DCE-RCP :-distributed computing Env-R.
CLIENT
Proxy
COM runtime lib in
windows NT
COM runtime lib in
windows NT
STUB
Function execute
and result
DCE-RPC
Component object module and distributed component Object Module
MSIDL

15. Enterprise JAVA Bean
JAVA RMI (Remote Method Invocation)
PROS
• Platform Independent
• JAVA RMI .
WEB Browser
WEB APP
RMI registry/ JVM RMI registry/ JVM
JDBC
DATABASE
IDL
RMI-IIOP

16. Vulnerabilities in Middleware
ISSUES
• OVERFLOWS
• WEB Application TOP 10
• Architecture flow
• Say No to Scanner’s

17. Importance of middleware patching?

18. Thank You…! 