Making Log Data Useful:SIEM and Log Management Together by Dr. Anton Chuvakin

1. Making Log Data Useful:SIEM and Log Management Together Dr. Anton Chuvakin Security Warrior Consulting www.securitywarriorconsulting.com April 2010

2. Outline Security Information and Event Management vs/with Log Management Graduating from LM to SIEM SIEM and LM “best practices” First steps with SIEM Using SIEM and LM together Conclusions

3. SIEM vs LM SIEM = SECURITY information and event management vs LM = LOG management

4. What SIEM MUST Have? Log and Context Data Collection Normalization Correlation (“SEM”) Notification/alerting (“SEM”) Prioritization (“SEM”) Reporting (“SIM”) Security role workflow

5. What LM MUST Have? Broad Scope Log Data Collection Efficient Log Data Retention Searching Across All Data Broad Use Log Reporting Scalable Operation: Collection, Retention, Searching, Reporting

6. Graduating from LM to SIEM Are you ready? Well, do you have… Response capability Prepared to response to alerts Monitoring capability Has an operational process to monitor Tuning and customization ability Can customize the tools and content

7. How to “Graduate?” Just like college…  Graduation tips: Satisfy the graduation criteria Use a LM vendors that has a good SIEM Deploy LM and use it operationally Periodic log reviews = first step to monitoring Look for integrated capability

8. What is a “Best Practice”? A process or practice that The leaders in the field are doing today Generally leads to useful results with cost effectiveness

9. BP1 LM before SIEM! If you remember one thing from this, let it be: Deploy Log Management BEFORE SIEM! Q: Why do you think MOST 1990s SIEM deployments FAILED? A: There was no log management!

10. Example Scenario A mid-size regional bank deploys log management Compliance, fraud tracking, user activity audit Use the tool on incident only first Start checking reports once in a while Establish log review process In two years, gets a SIEM to automate it!

11. BP2 Evolving to SIEM Steps of a journey Establish response process Deploy a SIEM Think “use cases” Start filtering logs from LM to SIEM Phases! Prepare for the initial increase in workload

12. Example LM->SIEM Filtering 3D: Devices / Network topology / Events Devices: NIDS/NIPS, WAF, servers Network: DMZ, payment network (PCI scope), other “key domains” Events: authentication, outbound firewall access Later: proxies, more firewall data, web servers

13. BP3 SIEM First Steps First step = BABY steps! Compliance monitoring “Traditional” SIEM uses Authentication tracking IPS/IDS + firewall correlation Web application hacking Simple use cases based on your risk What problems do YOU want solved?

14. Example SIEM Use Case Cross-system authentication tracking Scope: all systems with authentication (!) Purpose: detect unauthorized access to systems Method: track login failures and successes Rule details: multiple login failures followed by login success Response plan: user account investigation, suspension, communication with suspect user

15. SIEM + LM Integrated Use Correlated SIEM alert is generated Database server login guessing Key information is shown Account guessed, time, source Context information is pulled from LM What happened with this user before? What else the source did? What other logs were produced on server?

16. Eventually: SIEM Usage Scenarios Security Operations Center (SOC) RT views, analysts 24/7, chase alerts Mini-SOC / “morning after” Delayed views, analysts 1/24, review and drill-down “Automated SOC” / alert + investigate Configure and forget, investigate alerts Compliance status reporting Review reports/views weekly/monthly

17. Conclusions Everybody has logs -> needs to deal with them -> needs LOG MANAGEMENT! Deploy LM before SIEM Then decide whether and when you need SIEM Operationalize Log Management first, use it “early and often” Start with SIEM slowly and only for tangible, solvable problems!

18. Secret to SIEM Magic!

19. Questions Dr. Anton Chuvakin Email:anton@chuvakin.org Google Voice: 510-771-7106 Site:http://www.chuvakin.org Blog:http://www.securitywarrior.org LinkedIn:http://www.linkedin.com/in/chuvakin Consulting: www.securitywarriorconsulting.com Twitter:@anton_chuvakin

20. More on Anton Book author: “Security Warrior”, “PCI Compliance”, “Information Security Management Handbook”, “Know Your Enemy II”, “Hacker’s Challenge 3”, etc Conference speaker: SANS, FIRST, GFIRST, ISSA, CSI, Interop, many, many others worldwide Standard developer: CEE, CVSS, OVAL, etc Community role: SANS, Honeynet Project, WASC, CSI, ISSA, OSSTMM, InfraGard, ISSA, others Past roles: Researcher, Security Analyst, Strategist, Evangelist, Product Manager, Consultant

21. Security Warrior Consulting Services Logging and log management strategy, procedures and practices Develop logging policies and processes, log review procedures, workflows and periodic tasks as well as help architect those to solve organization problems Plan and implement log management architecture to support your business cases; develop specific components such as log data collection, filtering, aggregation, retention, log source configuration as well as reporting, review and validation Customize industry “best practices” related to logging and log review to fit your environment, help link these practices to business services and regulations Help integrate logging tools and processes into IT and business operations SIEM and log management content development Develop correlation rules, reports and other content to make your SIEM and log management product more useful to you and more applicable to your risk profile and compliance needs Create and refine policies, procedures and operational practices for logging and log management to satisfy requirements of PCI DSS, HIPAA, NERC, FISMA and other regulations More at www.SecurityWarriorConsulting.com