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Tracking the Progress of an SDL Program: Lessons from the Gym

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This presentation is from the 29 June 2009 OWASP Minneapolis-St. Paul (MSP) chapter meeting.

Cassio Goldschmidt of Symantec talked about defining consistent metrics for tracking security vulnerabilities throughout the security development lifecycle.

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Tracking the Progress of an SDL Program: Lessons from the Gym

  1. 1. Tracking the Progress of an SDL ProgramLessons from the Gym<br />Cassio Goldschmidt<br />June 29th, 2009<br />
  2. 2. Introduction<br />2<br />
  3. 3. Who am I?<br />Cassio Goldschmidt<br />Sr. Manager, Product Security<br />Chapter Leader, OWASP Los Angeles<br />Education<br />MBA, USC<br />MS Software Engineering, SCU<br />BS Computer Science, PUCRS<br />Certified Software Sec. Lifecycle Professional – CSSLP, (ISC)2<br />When I’m not in the office…<br />Volleyball (Indoor, Beach)<br />Coding<br />Gym…<br />3<br />
  4. 4. Typical Project Lifecycle<br />4<br />DESIGN<br />CODE<br />TEST<br />SUPPORT<br />
  5. 5. How your workout looks like<br />5<br />May 13th Workout<br />Exercise: Pile Squat<br />Repetitions: 35<br />Weight: 20 lbs<br />Exercise: Barbell Squat<br />Repetitions: 35<br />Weight: 150 lbs<br />Exercise: Rev. Curl<br />Repetitions: 20<br />Weight: 25 lbs<br />
  6. 6. How your METRICS should look like<br />6<br />May 13thSec. Metrics<br />Exercise type:<br />CWE<br />Exercise: Pile Squat<br />Repetitions: 35<br />Weight: 20 lbs<br />Exercise: Barbell Squat<br />Repetitions: 35<br />Weight: 150 lbs<br />Exercise: Rev. Curl<br />Repetitions: 20<br />Weight: 25 lbs<br />
  7. 7. How your METRICS should look like<br />7<br />May 13thSec. Metrics<br />Number of Reps:<br />Number of Findings<br />CWE: 79 - XSS<br />Repetitions: 35<br />Weight: 20 lbs<br />Exercise: Barbell Squat<br />Repetitions: 35<br />Weight: 150 lbs<br />Exercise: Rev. Curl<br />Repetitions: 20<br />Weight: 25 lbs<br />
  8. 8. How your METRICS should look like<br />8<br />May 13thSec. Metrics<br />Exercise Intensity:<br />CVSS<br />CWE: 79 - XSS<br />Findings: 10<br />Weight: 20 lbs<br />Exercise: Barbell Squat<br />Repetitions: 35<br />Weight: 150 lbs<br />Exercise: Rev. Curl<br />Repetitions: 20<br />Weight: 25 lbs<br />
  9. 9. How your METRICS should look like<br />9<br />May 13thSec. Metrics<br />CWE: 20 – Input Val<br />Findings: 1<br />CVSS: 8.6<br />DESIGN<br />Threat Model<br />CWE: 79 - XSS<br />Findings: 3<br />CVSS: <br />TEST<br />Pen Test<br />CWE: 314<br />Findings: 1<br />CVSS: 2.3<br />Support<br />Vul. Mgmt<br />
  10. 10. Common Weakness Enumeration<br />
  11. 11. Common Weakness EnumerationWhat is it?<br />A common language for describing software security weaknesses<br />Maintained by the MITRE Corporation with support from the National Cyber Security Division (DHS). <br />Hierarchical<br />Each individual CWE represents a single vulnerability type<br />Deeper levels of the tree provide a finer granularity<br />Higher levels provide a broad overview of a vulnerability<br />11<br />
  12. 12. Common Weakness EnumerationPortion of CWE structure<br />12<br />
  13. 13. Common Weakness EnumerationWhat data is available for each CWE?<br />Weakness description<br />Applicable platforms and programming languages<br />Common Consequences<br />Likelihood of Exploit<br />Coding Examples<br />Potential Mitigations<br />Related Attacks<br />Time of Introduction<br />Taxonomy Mapping<br />13<br />Link to CWE Page on XSS<br />
  14. 14. Common Weakness Enumeration How useful is this information?<br />14<br />Pie Chart showing the frequency of CWEs<br />found in penetration tests<br />
  15. 15. Common Vulnerability Scoring System<br />
  16. 16. Objective (and “perfect enough”) metric<br />A universal way to convey vulnerability severity<br />Can be used for competitive analysis<br />CVSS score ranges between 0.0 and 10.0<br />Can be expressed as high, medium, low as well<br />Composed of 3 vectors<br />Base<br />Represents general vulnerability severity: Intrinsic and immutable<br />Temporal<br />Time-dependent qualities of a vulnerability<br />Environmental<br />Qualities of a vulnerability specific to a particular IT environment<br />16<br />Common Vulnerability Scoring System (CVSS)What is it?<br />
  17. 17. 17<br />Common Vulnerability Scoring System (CVSS)BASE Vector<br />Exploitability<br />Impact<br />Sample Score: 7.5<br />Sample Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P)<br />Every CVSS score should be accompanied by the corresponding vector<br />
  18. 18. 18<br />Common Vulnerability Scoring System (CVSS)The Calculator<br />
  19. 19. Training and Metrics. <br />
  20. 20. Training and MetricsA special activity in the SDL<br />20<br /><ul><li>Security training is what food is to a workout
  21. 21. Same workout metrics do not apply
  22. 22. Quality of your intake affects overall performance
  23. 23. Staff needs ongoing training</li></li></ul><li>Training and Metrics Security Learning Process<br />21<br />
  24. 24. Training and Metrics Security Learning Process<br />22<br />Understand who is the audience<br /><ul><li> Previous knowledge about secure coding and secure testing
  25. 25. Programming languages in use
  26. 26. Supported platforms
  27. 27. Type of product</li></li></ul><li>Training and Metrics Security Learning Process<br />23<br />Train everyone involved in the SDL<br /><ul><li> Developers: Secure Coding, Threat Model
  28. 28. QA: Security Testing, Tools
  29. 29. Managers: Secure Development Lifecycle (also known as Symmunize)</li></li></ul><li>Training and Metrics Security Learning Process<br />24<br />Quality Assurance - Capture the flag<br /><ul><li> Use Beta software
  30. 30. Approximately 3 hours long
  31. 31. Top 3 finders receive prizes and are invited to explain what techniques and tools they used to find the vulnerabilities to the rest of the group</li></li></ul><li>Training and Metrics Security Learning Process<br />25<br />Pos Class Survey<br /><ul><li> Anonymous
  32. 32. Metrics
  33. 33. Class content
  34. 34. Instructor knowledge
  35. 35. Exercises </li></li></ul><li>Training and Metrics Security awareness is more than training<br />26<br />Knowledge Sharing Activities<br />Tech Exchanges<br />Cutting Edge<br />CTO Newsletter Articles<br />
  36. 36. Conclusions and final thoughts<br />
  37. 37. Why This Approach Makes Sense?<br />28<br />DESIGN<br />CODE<br />TEST<br />SUPPORT<br /><ul><li>Compare Apples to Apples
  38. 38. Quantify results in a meaningful way to “C” executives
  39. 39. Past results can be used to explain impact of new findings
  40. 40. Can be simplified to a number from 1-10 or semaphore (green, yellow and red).
  41. 41. Can be used for competitive analysis
  42. 42. Harder to game CVSS
  43. 43. CWE can be easily mapped to different taxonomies</li></li></ul><li>Thank You!<br />Cassio Goldschmidt<br />cassio_goldschmidt@symantec.com<br />cassio@owasp.org<br />Copyright © 2007 Symantec Corporation. All rights reserved.  Symantec and the Symantec Logo are trademarks or registered trademarks of Symantec Corporation or its affiliates in the U.S. and other countries.  Other names may be trademarks of their respective owners.<br />This document is provided for informational purposes only and is not intended as advertising.  All warranties relating to the information in this document, either express or implied, are disclaimed to the maximum extent allowed by law.  The information in this document is subject to change without notice.<br />

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