Cloud Computing and Virtualisation

Security in Cloud Computing & Virtualization
LRP BASED ON
Speeches & Workshops
attended
Computer Society of
India
Institution of
Engineers
White Papers
& Friends
Institute of
Electronics &
Telecommunications
Engineers

If you can't explain it simply……
….you have not UNDERSTOOD it well enough

Basic
Introduction
Types &
Applications
SECURITY
Conclude
20 – 25 Min drive

CLOUD COMPUTING
• Offers Computing as a Service
• Provisions service in a timely on demand manner
VIRTUALISATION
• Provisions running multiple OS on a single Physical
System and share underlying hardware resources

Traditional Server
speed
performa
nce
Security in Virtualisation & Cloud Computing
slow
efficiency
Purana
zamana?

APPLN
OS STORAGE
HW PLATFORM
APPLN
OS STORAGE
HW PLATFORM
APPLN
OS STORAGE
HW PLATFORM
APPLN
OS STORAGE
HW PLATFORM
EMAIL
WINDOWS
EXCHANGE
WEB SERVER
WINDOWS IIS
APP SERVER
LINUX
GLASSFISH
DB SERVER
LINUX
MYSQL

SYSTEM ADMINISTRATORS
• Servers taken as a whole unit that incl Hardware, the
OS,the Storage and the Applications
SERVERS
• Often referred to by their functions ie the Exchange
server, the SQL Server or the File Server etc.
OVERTAXED?
• If any of the servers is overtaxed,then the System
Administrator must add in a new server.

MULTIPLE SERVERS
• Unless there are multiple servers,if a service
experiences a HW failure, then the service is down.
CLUSTERING ?
• Clustering can be implemented to make them more
fault tolerant. However, even clusters have limits on
their scalability and not all applications work in a
clustered environment.

-Easy to Conceptualize
- Fairly easy to deploy
-Easy to backup
-Virtually any appln /
service can be run from
this type of setup
-Under utilized HW
-Vulnerable to HW
outrages
-Not Very scalable
-Difficult to replicate
-Redundancy issues
-Expensive

Virtual servers seek to encapsulate the
server software away from hardware
Servers end up as mere files stored on a
physical box
Can be serviced by one/more hosts & one
host may house one/more virtual servers
If built correctly,not affected by the loss of
host
Host may be removed and introduced at
will to accommodate maint

-Resource Pooling
- Highly reduntant
-High Avail
-Rapid and easy dply
-Reconfigurable
-Optimisation
-Harder to conceptualise
-Slightly costly

Offerings from many companies
Hardware Support
Fits well with the move to 64 bit
Virtualization is now a well established
technology

Platform Virtualization
Desktop Virtualization
Network Virtualization
Storage Virtualization
Resource Virtualization

No need to own the Hardware
Rent as needed
Option of Public Cloud
Can go for a Private Cloud

Types of Cloud Models
Private
Public
Hybrid

Based on the standard cloud computing model
Service provider makes resources, such as applications and
storage, available over the Internet
Services may be free or offered on a pay-per-usage model
Limited service providers like Microsoft, Google etc own all
Infrastructure at their Data Center and the access allowed
through Internet mode only

Cloud infrastructure operated solely for a single organization
Users "still have to buy, build, and manage them"
Designed to offer the same features and benefits of cloud
systems
Removes a number of objections to the cloud computing
model including control over enterprise and customer data,
worries about security

• Setup with a Credit Card
Various Providers let u create Virtual
Servers
• Choose the OS
• Choose the Software
• Instant start/Instant Close
U can create a Virtual Server
U Get the Bill

• Many systems have variable
demands
• Web sites at peak Hours
Cost Control
• No need to buy HW
Reduce Risk

• Business Expansion
• Business change
Scalability@Business Agility
• Scaling Back =Scaling Up
Elasticity

Stick to Business
Y should TOI worry about IT
Avoid getting into NW Problems &
issues

Deployment Models
IaaS
SaaS
PaaS
CaaS
MaaS

Communication as a Service
Infrastructure as a Service
Monitoring as a Service
Platform as a Service
Software as a Service
Crime Ware as a Service
IT as a Service

Many cloud deployments are build on
virtualised platforms
However it is not a requirement
Some SaaS dply are not virtualised
Virtualization is not a requirement of cloud computing, its ability to
efficiently share resources makes it an excellent foundation.

Hypervisor, also called Virtual Machine
Manager (VMM)
One of many hardware
virtualization techniques allowing
Multiple Operating Systems
Conceptually one level higher than a
Supervisory program
Manages the execution of the guest
operating systems
Used to describe the interface provided by
the specific cloud computing functionality
infrastructure as a service (IaaS)

100% SECURITY IS A MYTH COL S K KAPOOR
…..Off course our answer sheets also came out to be myth

Crime as a Service (CaaS) is just like Software as a
Service (SaaS)
……………but instead of offering legal and helpful services though the Internet,
criminal syndicates are offering illegal and detrimental services
…such as infecting large quantities of
computers, sending spam and even launching
direct denial of service (DDoS) attacks

Infrastructure As (Crime) Service or Iaa(C)S, in which the criminals offer malicious services
(or infrastructures) to attack specified targets, services may include complex “traditional”
infrastructures such as botnets
….but also “innovative” large scale fashioned services such as DDoS or also sharper
services such as password cracking. Try to surf the web and you will discover how easy it is
to purchase such a criminal kind of services.
Security in the Cloud – Dealing with AAS
HOLES

Software As a (Crime) Service or Saa(C)S, in which the criminals offer malicious
software (and the needed support) as a service.
An example? The latest Zeus Variant dubbed Citadel provides the purchaser
with help desk and even a dedicated Social Network

Loose Control Over Assets
Trust ur data to Cloud Service Provider?
Loose control over Physical Security
In a Public Cloud u share with others!!!!
No knowledge of what runs where?
Sticky Services!!!!@incompatibility
Control over Encryption/Decryption Keys

No Stds yet!!!@OCC is there working
Internally developed Code in cloud?
Loose control over Physical Security
Msn critical applications in public cloud?
Audit Logs accessible to service provider
PCI DSS
Constant up gradation!!!
Payment Card Industry Data Security Standard

Data Residency in SaaS
Banking data to reside within country!!
Citizen data not on shared servers
Easier for attackers!!!
Double edged- Cloud & Virtualization
Patch Maintenance
Bharosa & Trust

Privileged User Access
• Inquire about who has spl access to data
• Who are the administrators and how r they hired?
Regulatory Compliance
• Is vendor willing to undergo external audits
• Security classification?
Data Location
• Does the provider allow any control over loc of data
Data Segregation
• Encryption policy, schemes and design

Recovery
• What happens in case of disaster
• Restoration Policies and Business Continuity Plans
Investigative Support
• Vendor’s ability to investigate any inappropriate or illegal activity ?
Long term Viability
• What happens if company goes out of Business?
• Risk Management
Security Monitoring and IR
• Notification of Sec Vulnerabilities
• IR Teams?

Data in Transit
Data at Rest
Data in Processing
Data Lineage@mapping
Data Remanence

Few Cases.....u should know
AWS
Google
Docs
Cevin

Internet Assigned Numbers Authority & RIR

Stealing keys to access and manage hosts
Attacking unpatched,vulnerable services
Hijacking accounts with weak pwds
Weak Firewalls
Deploying Trojans

Langot’s@Microsoft, Windriver
CSI
IETE
Institution of Engineers,Kolkatta

Cloud Computing and Virtualisation

Related slideshows

More Related Content

Cloud Computing and Virtualisation