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Enterprise Security: Planning Today for Tomorrow’s Unknown Threats. Christopher Buse Chief Information Security Officer State of Minnesota. Agenda. Vulnerability and threat trends Minnesota’s enterprise-wide vulnerability management approach Q & A. Payoff.
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Enterprise Security: Planning Today for Tomorrow’s Unknown Threats Christopher BuseChief Information Security OfficerState of Minnesota www.security.state.mn.us
Agenda • Vulnerability and threat trends • Minnesota’s enterprise-wide vulnerability management approach • Q & A www.security.state.mn.us
Payoff • Update on the current threat landscape • Understanding of why the problem is simply too big to solve on an agency by agency basis • Tips to form audit recommendations with serious impact www.security.state.mn.us
My Job • Build a world class enterprise security program for the State of Minnesota • Challenges • Security • Cultural • Financial • Human Resources www.security.state.mn.us
Threat Update www.security.state.mn.us
The Landscape is Hostile • Exponential increase in threats • Threats more complex and stealthy • Perpetrated by well funded criminal groups • Zero day is now everyday www.security.state.mn.us
Mobile Phone Attacks • Today’s phones are computes • iPhone • Blackberry • Examples • Blackjacking Exploit www.security.state.mn.us
RSA Takeaway • Bad guys are getting much better • Crimes of notoriety now crimes perpetrated for financial gain • Almost everything bad starts by exploiting a vulnerability www.security.state.mn.us
Minnesota’s Approach www.security.state.mn.us
What is a Vulnerability? • Typically a logic flaw in a piece of software • Exploited by hackers to obtain unauthorized access • Over 8000 new vulnerabilities in 2006 www.security.state.mn.us
Dissecting the Problem • Vulnerabilities that we can find and fix • In the wild long for at least a week • Reputable vendors have signatures • Zero day vulnerabilities • Problems just identified • Most likely no signatures • Sometimes workarounds to minimize risk • Unknown vulnerabilities • Something bad is happening • Scanning shows that nothing is wrong • AV and all else is up to date www.security.state.mn.us
Plan of Attack www.security.state.mn.us
Find and Fix www.security.state.mn.us
Desired Outcome • Develop a comprehensive vulnerability management program • Promptly identify vulnerabilities • Classify vulnerabilities, based on criticality • Remediate issues www.security.state.mn.us
Strategy • Invest in an Enterprise Vulnerability Management Solution • Join forces with Minnesota Colleges and Universities to build out a common vulnerability management program and share a common vulnerability management platform www.security.state.mn.us
Personnel • Office of Enterprise Technology and MnSCU Office of the Chancellor: • Oversee the program • Maintain enterprise tools • Provide training and technical support to agencies • Analyze and disseminate security advisories • Agencies and MnSCU Institutions: • Use the tools to assess all technology assets • Establish vulnerability management team • Remediate issues www.security.state.mn.us
Team Interactions OET Central Vulnerability Management Team Agency Vulnerability Management Team • Network Support • Server Support • Workstation Support • Application Support www.security.state.mn.us
Tools • ip360 by nCircle • VNE Manager appliance • Harden BSD OS • Web based console • Device Profiler • Harden BSD OS • Flash memory • Security Intelligence Hub (SIH) • Oracle Database • Canned and custom reporting • TCO expected to be about 13 million over 12 years www.security.state.mn.us
Architecture www.security.state.mn.us
Program Status • Software and hardware infrastructure built • Installations complete at most large agencies • Policies and detailed standards being finalized • Lots of scanning activity • External face of government • Inside secure agency networks • Across the WAN • Areas to focus on next • Mobile device vulnerabilities • Web application vulnerabilities www.security.state.mn.us
Zero Day Exploits www.security.state.mn.us
Shootin Cattle • World one giant herd • Sharpshooters take aim and fire • One cow drops • Lead cow puts impenetrable shield to stop more bullets • The herd is once again safe Snoop Doggie Moo www.security.state.mn.us
Key Takeaways • One cow always takes a bullet for the good of the team • It’s best not to be THAT cow I Paid Da Cost To Be Da Boss Snoop www.security.state.mn.us
Strategy • Manage an enterprise-wide threat dissemination service • Subscribe to several commercial vulnerability notification services • Communicate targeted notices to agencies • Leverage inventory date in ip360 • Communicate over secure portal www.security.state.mn.us
Status • Targeted advisory service dependent on ip360 inventory data • Until ip360 fully deployed, broadcast critical alerts to agencies • Plan to implement a secure portal this year www.security.state.mn.us
Unknown Vulnerabilities www.security.state.mn.us
Strategy • Actively look for signs of anomalies • IDS/IPS systems • Network flows • Security Information and Event Management (SIEM) system • Quarantine machines exhibiting abnormal behavior www.security.state.mn.us
SIEM • Real time analysis of security event data • Identify threats • Reporting on log data for forensic activities and compliance monitoring • SIM is responsible for storage and reporting • SEM is responsible for analysis and threat identification www.security.state.mn.us
Status • Joining forces with MnSCU to build one SIEM solution for higher education and government • Currently working on RFP • Plan to have solution running by June 2009 • SIEM technology carries a hefty price tag www.security.state.mn.us
Audit Tips www.security.state.mn.us
Stuff To Consider • Enterprise-wide vulnerability and threat management audit • Problem simply too costly to solve on an agency by agency basis • Scanners only address known vulnerabilities with signatures • Need strategy to limit damage from zero day vulnerabilities • Need to be able to recognize abnormal network traffic www.security.state.mn.us
Questions chris.buse@state.mn.us www.security.state.mn.us
