u.s. national cybersecurity - stanford...
TRANSCRIPT
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U.S. National Cybersecurity September 28, 2006
U.S. National
Cybersecurity
Martin Casado • Keith Coleman
Sponsored by William J. Perry
MS&E 91SI
Fall 2006
Stanford University
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Why are we talking about
cybersecurity?
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U.S. National Cybersecurity September 28, 2006
Case 1: Blue Security DoS
• May 2006, anti-spam company “Blue Security”
attacked by PharmaMaster
• PharmaMaster bribed a top-tier ISP's staff
member into black holing Blue Security's former
IP address (194.90.8.20) at internet backbone
routers.
• Blue Security moves to protect itself
• Attack disrupts the operations of five top-tier
hosting providers in the US and Canada, as well
as a major DNS provider for several hours.
• Blue security folds �
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U.S. National Cybersecurity September 28, 2006
Case 2: Slammer Worm
• January 2003Infects 90% of vulnerable computers within 10
minutes
• Effect of the Worm- Interference with elections
- Cancelled airline flights
- 911 emergency systems affected in Seattle
- 13,000 Bank of America ATMs failed
• No malicious payload!
• Estimated ~$1 Billion in productivity loss
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U.S. National Cybersecurity September 28, 2006
Case 3: WorldCom
• July 2002WorldCom declares bankruptcy
• ProblemWorldCom carries 13% - 50% of global internet traffic. About 40% of Internet traffic uses WorldCom’s network at some point
• October 2002Outage affecting only 20% of WorldCom users snarls traffic around the globe
• Congressional HearingsCongress considers, but rejects, extension of FCC regulatory powers to prevent WorldCom shutdown
Vulnerabilities are not just technical
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U.S. National Cybersecurity September 28, 2006
Case 4: September 11
• Wireless Tower on Top of Trade Center Destroyed
• AT&T has record call volumes
• “Flash” usage severely limits availability
• Rescue efforts hampered
Physical Vulnerability!
Legitimate Usage!
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U.S. National Cybersecurity September 28, 2006
Case 5: “Titan Rain”
• Successful network intrusions on U.S. military installations
• Increasing in frequency since 2003
• Originating from China
• Successful intrusion into…– U.S. Army Information Systems Engineering Command at Fort
Huachuca, Arizona
– Defense Information Systems Agency in Arlington, Virginia
– Naval Ocean Systems Center in San Diego, California
– United States Army Space and Strategic Defense installation in Huntsville, Alabama
– more…
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U.S. National Cybersecurity September 28, 2006
What’s really going on here
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U.S. National Cybersecurity September 28, 2006
Increasing Dependence
• Communication (Email, IM, VoIP)• Commerce (business, banking, e-commerce, etc)
• Control systems (public utilities, etc)• Information and entertainment• Sensitive data stored on the Internete.g.
• Biz, Edu, Gov have permanently replaced physical/manual processes with Internet-based processes
• Navy command dissemination?
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U.S. National Cybersecurity September 28, 2006
Security Initially Not a Priority
Other design priorities often trump security:
Cost
Speed
Convenience
Open Architecture
Backwards Compatibility
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U.S. National Cybersecurity September 28, 2006
And It’s Really Hard …
• Hard to retrofit security “fixes”
• No metrics to measure (in)security
• Internet is inherently international(no real boundaries)
• Private sector owns most of the infrastructure
• “Cybersecurity Gap”: a cost/incentive disconnect?– Businesses will pay to meet business imperatives
– Who’s going to pay to meet national security imperatives?
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U.S. National Cybersecurity September 28, 2006
An Achilles Heel?
This level of dependence makes the Internet a
target for asymmetric attack
Cyberwarfare
Cyberterrorism
Cyberhooliganism*
and a weak spot for accidents and failures
* Coined by Bruce Schneier, Counterpane
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U.S. National Cybersecurity September 28, 2006
The Challenge
Clearly not just a technical problem. Requires
consideration of economic factors, public
policy, legal issues, social issues etc.
That’s what this class is about.
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U.S. National Cybersecurity September 28, 2006
What is “cybersecurity?”
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U.S. National Cybersecurity September 28, 2006
According to the U.S. Dept of Commerce:
n. cybersecurity:
Some Definitions
n. information security: The protection of information
against unauthorized disclosure, transfer, modification,
or destruction, whether accidental or intentional.
See “information security”
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U.S. National Cybersecurity September 28, 2006
Some Definitions
According to H.R. 4246 “Cyber Security Information Act”:
cybersecurity: “The vulnerability of any computing system,
software program, or critical infrastructure to, or their ability to
resist, intentional interference, compromise, or incapacitation
through the misuse of, or by unauthorized means of, the Internet,
public or private telecommunications systems or other similar
conduct that violates Federal, State, or international law, that
harms interstate commerce of the United States, or that threatens
public health or safety.”
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U.S. National Cybersecurity September 28, 2006
Some Definitions
According to S. 1901 “Cybersecurity Research and Education Act of 2002”:
cybersecurity: “information assurance, including scientific, technical, management,
or any other relevant disciplines required to ensure computer and network security,
including, but not limited to, a discipline related to the following functions:
(A) Secure System and network administration and operations.
(B) Systems security engineering.
(C) Information assurance systems and product acquisition.
(D) Cryptography.
(E) Threat and vulnerability assessment, including risk management.
(F) Web security.
(G) Operations of computer emergency response teams.
(H) Cybersecurity training, education, and management.
(I) Computer forensics.
(J) Defensive information operations.
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U.S. National Cybersecurity September 28, 2006
Some Definitions
According to S. 1900 “Cyberterrorism Preparedness Act of 2002 ”:
cybersecurity: “information assurance, including information
security, information technology disaster recovery, and information
privacy.”
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of cyberspace
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of cyberspace
information systems
and networks
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks
+ with the goal of
protecting operations
and assets
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks with the goal of
protecting operations and assets
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks with the goal of
protecting operations and assets
security in the face of
attacks, accidents and
failures
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks in the face of
attacks, accidents and failures with the
goal of protecting operations and assets
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = security of information
systems and networks in the face of
attacks, accidents and failures with the
goal of protecting operations and assets
availability, integrity
and secrecy
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U.S. National Cybersecurity September 28, 2006
One way to think about it
cybersecurity = availability, integrity and
secrecy of information systems and
networks in the face of attacks, accidents
and failures with the goal of protecting
operations and assets
(Still a work in progress…comments?)
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U.S. National Cybersecurity September 28, 2006
In Context
corporate cybersecurity = availability, integrity
and secrecy of information systems and
networks in the face of attacks, accidents and
failures with the goal of protecting a
corporation’s operations and assets
national cybersecurity = availability, integrity and
secrecy of the information systems and networks
in the face of attacks, accidents and failures with
the goal of protecting a nation’s operations and
assets
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U.S. National Cybersecurity September 28, 2006
What This Class is All About
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U.S. National Cybersecurity September 28, 2006
Cybersecurity Questions
• How vulnerable is the United States to a cyberattack? Are we heading for an “electronic pearl harbor”?
• What areas of vulnerability require the greatest attention in order to improve our national cybersecurity?
• With what parties must the government work in order to make significant cybersecurity improvements?
• Are market forces sufficient to provide for US national cybersecurity? Should the government get involved to change these forces, and if so, how?
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U.S. National Cybersecurity September 28, 2006
Cybersecurity Questions
• Is the Internet an appropriate platform upon which to operate infrastructure systems critical to US economic or government operation?
• What characteristics would we want in an “Ideal Internet”?
• Can the current Internet evolve into a network with significantly improved security guarantees or will another system need to created?
• Does greater Internet security necessarily entail decreased online privacy?
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U.S. National Cybersecurity September 28, 2006
Schedule & Syllabus
Sept. 28 Introduction
Oct. 5 Technology & Policy 101
Oct. 12 An industry perspectiveGuest Speaker: Stephen Hansen, Google & Stanford
Oct. 19 Market incentives and security metricsGuest Speaker: Kevin Soo Hoo, McAfee
Oct. 26 Cybersecurity and lawGuest Speaker: Jennifer Granick, Stanford Law School
Nov. 2 Reinventing the InternetGuest Speaker: Martin Casado, Computer Science
Nov. 9 Network warfare Guest Speaker: Chris Eagle, U.S. Naval Postgraduate School
Nov. 16 A future critical information infrastructureGuest Speaker: David Alderson, California Institute of Technology
Nov. 30 Liability, negligence and cyberinsuranceGuest Speaker: Erin Kenneally, San Diego Supercomputing Center
Dec. 7 Legislative debate
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U.S. National Cybersecurity September 28, 2006
What This Class is Not
• This class is not…
– “How the Internet works”
• Take CS244A Networks, or CS193i Internet
Systems
– “How to hack”
• Take CS155 Computer Security
– “Cryptography and privacy”
• Take CS255 Intro to Cryptography
– “File sharing and music piracy”
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U.S. National Cybersecurity September 28, 2006
What This Class Is
• This class is…
– A look at the bigger picture
– A chance to consider all the factors that play
into cybersecurity
• Technology
• Public Policy
• Economics
• Social Issues
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U.S. National Cybersecurity September 28, 2006
Course Logistics
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U.S. National Cybersecurity September 28, 2006
Basics
• Course website will have latest readings &
updates:
http://msande91si.stanford.edu
• 2 units, S/NC
• No prerequisites
• Location: Wallenberg 160-325
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U.S. National Cybersecurity September 28, 2006
Course Format
Class Format:
• Pre-class readings (fresh, interesting stuff)
• Submit two discussion questions
• Lecture and Q&A with expert guest speaker
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U.S. National Cybersecurity September 28, 2006
Our Evaluation
The Cybersecurity Legislative Debate
• You’ll be defending one of two pieces of proposed legislation
• In groups, create an in-class presentation backing a single position on one of the bills. You will debate an opposing groupand your will defend your stance against questioning from the rival group and the class at large.
• Panel of celebrity judges will vote on the winner of each debate.
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U.S. National Cybersecurity September 28, 2006
Grading & Expectations
Our expectations are simple:
• Do all readings
• Submit pre-class discussion questions
• Significant in-class participation
• Completion of final legislative debate
project
This should be fun!
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U.S. National Cybersecurity September 28, 2006
Enrollment
• Limited to 20 students
• Student Info Questionnaire
• Looking to audit? Talk to us after class.
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U.S. National Cybersecurity September 28, 2006
Contact
• Website & Email
– Website: http://msande91si.stanford.edu
– Instructors: [email protected]
• Office Hours
– By request (send email)
– Individual questions after class
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U.S. National Cybersecurity September 28, 2006
Thank You