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OWASP Boulder

Welcome to the Boulder chapter homepage. The chapter leaders are Andy Lewis,Kathy Thaxton, and Jeremy Martinez
Click here to join the local chapter mailing list.


OWASP Foundation (Overview Slides) is a professional association of global members and is open to anyone interested in learning more about software security. Local chapters are run independently and guided by the Chapter_Leader_Handbook. As a 501(c)(3) non-profit professional association your support and sponsorship of any meeting venue and/or refreshments is tax-deductible. Financial contributions should only be made online using the authorized online chapter donation button. To be a SPEAKER at ANY OWASP Chapter in the world simply review the speaker agreement and then contact the local chapter leader with details of what OWASP PROJECT, independent research or related software security topic you would like to present on.


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Next Meeting - Thurs, Feb 19th, 6 PM, Staples

Please join the Boulder OWASP Chapter on Thursday, February 19, 2009 at Staples for a presentation by Martin Stenkilde, IBM Rational Certified Senior IT Specialist. This interactive Session is designed to teach attendees first-hand the fundamentals of hacking – how to find web application vulnerabilities through a combination of manual and automated approaches, and what to do when a vulnerability has been identified.

We will also be taking nominations for a new Chapter Chair or Co-Chairs and will vote at our April meeting. No meeting in March in lieu of SnowFROC on March 5th. Please see the conference website at for all the details and to register. Registration is *FREE* but mandatory to ensure we don't oversubscribe venue capacity.

Presentation: Web Application Security: Hacking 101

Few can argue that web applications present a significant threat of attacks for State Government Organizations.

In fact Gartner research indicates that 75% of today’s attacks occur at the application level and 80% of organizations will experience an application security incident by 2010. Cost of the data breach at TJX soars to $256M, Boston Globe—August 2007 Monster says data loss involved 1.3 million names, Reuters—August 2007 Credit Card Information Stolen from State of Indiana’s website, InfoWeek—January 2007

Are you confident this won’t happen to you? This interactive Session is designed to teach attendees first-hand the fundamentals of hacking – how to find web application vulnerabilities through a combination of manual and automated approaches, and what to do when a vulnerability has been identified.

In this session, you will learn about:

   * The importance of web application security – today's most significant online threat
   * The three most common web application attacks – how they occur, and what can be done to prevent them
   * Manual versus automated approaches for scanning and identifying web application vulnerabilities
   * How IBM Rational AppScan, an automated vulnerability scanner, can help you automate more of what you are doing manually today
   * Best practices for fixing vulnerabilities once they have been identified
   * Making web application security part of the entire development lifecycle

Directions to Staples:,+Broomfield,+CO+80021,+USA&sa=X&oi=map&ct=title


  • 6:45 to 7pm Chapter Business and nominations for new Chapter Leader
  • 7pm to 8:15pm Presentation

Sponsor: IBM Rational Speaker: Martin Stenkilde, IBM Rational Certified Senior IT Specialist Martin, a native Dane, started his professional career in quality assurance while working for Rational Software's European Headquarter in Amsterdam. Martin also spent time working for Zyntax, a Premier IBM Business Partner, where he functioned as the primary Performance and Security Testing Consultant for 5 years. Martin then joined the IBM Rational Specialty team, and is a certified IBM Test Manager, WebSphere Solutions Specialist, ISEB Professional, and holds a master certification from the Open Group.


In order to participate in the "hands on" you will need to bring a wifi equipped laptop. Many of the challenges can be solved without any special tools. However, for those challenges that require tools, we recommend the OWASP LiveCD. Go ahead and download it and familiarize yourself with it ahead of time, if you're so inclined.

Following the meeting we will have informal discussions over beverages at the Gordon Biersch Brewery and Restaurant.

SnowFROC 5 March 2009

See the planning page for up-to-the minute details

Local News

Chapter Elections 19 Feb

(Andy writes:) Andy's gone, Kathy's taking up the slack and kicking butt arranging for IBM to come do hands-on and presentation for Feb. Kathy is planning to have chapter elections BUT you need to submit a nomination/self-nomination to kthaxton AT owasp DOT org saying who you are, what your vision is, how you plan to manage the time it takes, and why you're interested. There is a recent precedent of Security organizations being overtaken by chowderheads and the Boulder Chapter deserves better. (Personal note from Andy - thanks VERY MUCH to all of you who wished me well. I'm doing all right but had to step away from OWASP for the time being. Please help Kathy with the Chapter and with SnowFROC - she is really working hard to keep things going!)

Lab Design Wiki

Info and Wish List for the lab - feel free to edit...

Colorado OWASP Chapter Leaders Asked to Speak at ISACA Meeting

David Campbell moderated a panel discussion; Andy was on the panel. Here's what it was about:

Challenges and Successes in Providing Business Benefits: The View from IT Audit, IT Security, and IT Compliance

We will have a panel to discuss the problems, challenges, and successes when working to integrate business needs between the Audit, Security, and Compliance IT functional groups. These groups sometimes seem to work at cross-purposes, and to some business units, these IT groups are at odds with day-to-day business objectives. The panelists will present anecdotes and events to demonstrate challenges and successes in current and previous positions. We will also have an extended Q&A and will be soliciting your input. If you have questions or areas you would like covered, please email the Education VP ahead of time at education AT isaca-denver D0T org

Panelists: Jim Dillon, IT Audit view Doug Staubach, IT Compliance view Andy Lewis, IT Security view David Campbell, Moderator

Jeremy Martinez Joins bOWASP Leadership

Jeremy has been at every bOWASP meeting since its inception in Sept 2007 and has volunteered to take on some of the responsibilities for keeping the chapter going. Welcome Jeremy!

PCI DSS 6.6 and 11.3 Clarification Issued

Speaking of web app security...

Clarification WRT PCI requirement 6.6 - WAFs and Code Reviews for PCI compliance.

Clarification WRT PCI requirement 11.3 - pen-testing.

4/14/2008 - Interesting File Download Injection research from Jeff Williams of Aspect Security.

4/1/2008 Yes! There's an April meeting! List-server FUBAR; switching to manual We've been having trouble with our list server. The last thing through was an inadvertent cancellation, so you should have all gotten an individual message to say that there IS a meeting in April!

2/28/2008 - Dariush Rusta has volunteered to be the Project Manager for the Front Range OWASP Conference on June 10th ( THANKS Dariush). More info info to follow later...

How do I learn more about input validation?

Google for Input Validation

Some PHP Security Resources

There seem to be dang few PHP security resources. Please edit this wiki if you've got some good ones. In the mean time, here's some stuff that looks pretty good: PHP meets the Top Ten (c2006)

Fortify's "RAT" is a free tool for static code analysis...

SPI Dynamics to Speak at Feb's Chapter Meeting

Derek Zunker, my local HP rep, has volunteered to sponsor February's meeting, including providing a speaker from SPI Dynamics on February 21st.

New OWASP Tools Available - Jan 2008

Four new OWASP tools are available. OWASP Enterprise Security API helps organizations get organized about application security, OWASP CSRFTester tests for CSRF flaws, OWASP CSRFGuard stops CSRF attacks, and the fantastic new Anti-Samy component allows safe posting of rich content.

What's a Typical Agenda for the Chapter?

6-6:30 - pizza and beverages provided by a sponsor

6:30-6:40 - intro to OWASP and Chapter Business

6:40-7:35'ish - presentation, demonstration, or workshop

7:35'ish - Q & A

after Q & A - adjourn to less formal environment

What should I expect to see at a bOWASP meeting?

Each speaker will be encouraged to cover:

- demonstration of the threat ( "look!  I got EVERYONE'S credit card #!")
- overview/sample of vulnerable code, preferably in PHP, Java, or .Net env.
- some details regarding how to correct the code
- some thoughts as to how to test for the problem and/or "immunize" against it during a typical SDLC
- additional tools and references

Notes From Previous Meetings

2009 meetings

First Meeting of 2009 - Thursday, January 22nd, 2009 at Staples CE - Broomfield (formerly Corporate Express's US Headquarters)

at 1 Environmental Way, Broomfield, CO 80021.

AppSec Capture the Flag

The Boulder OWASP chapter is pleased to present the CTF from the New York Appsec 2008 conference. The CTF is a series of 30 or so "challenges" which demonstrate commonly found software vulnerabilities.

The purpose of the CTF is twofold. Advanced users can test their AppSec acumen by tackling the challenges on their own. Beginning users can learn AppSec fundamentals as they are guided through the challenges by the friendly chapter leaders and advanced users.

Whilst seemingly technical in nature, the CTF will also be of interest to managers, developers and executives, as it provides a simple way to demonstrate and communicate the serious impact of many AppSec vulnerabilities.

October 2008: Alex Smolen: the ASP .NET ESAPI


Here are the links to the available presentations from FROCo8:

Jeremiah Grossman Business Logic Flaws - 7 Deadly Sins Media:FROCo8_JeremiahGrossman_BizLogicFlaws.pdf

Akshay Aggarwal Application Security Kung-Fu Competitive Advantage from Threat Modeling Media:ApplicationSecurityKungFuByAkshayAggarwal-FrontRangeOWASP-10Jun08.pdf

Robert Hansen Web Browser (In)Security

Mike Zusman SSL VPN Security Blog post containing slides

More info about the event

Planning page,

2008 Meeting Notes

All 2008 meeting notes

Black Box vs White Box Testing by John Dickson of Denim Group, Ltd. (Sept 2008)

Static Analysis Techniques for Testing Application Security by Dan Cornell of The Denim Group (Aug 2008)

Grendel-Scan presentation and ISO (David Byrne and Eric Duprey, July 2008).

XSS by David Campbell and Eric Duprey (May 2008)

Ryan C. Barnett's Dynamic Vulnerability Identification - Continuous Web Application Assessment (April 2008)

Michael Sutton's "SQL Injection Revisited" (Feb 2008)

Aman Garg - Web App Protection, Tips for QA and Testing (January 2008)

2007 Meeting Notes

All 2007 Meeting Notes

Patrick White, Aspect-Oriented Programming (Nov 2007)

Jeremiah Grossman, Top 10 Web Attack Techniques, their potential impact, and strategies to protect your company

Chapter Leader Links

2009 Colorado Planning Page

Colorado 2009 PLANNING PAGE

Board Members

Andy Lewis (Founder)

Kathy Thaxton (Events Director)

Jeremy Martinez (Board Member)

Pizza Delivery At Corporate Express

1. Pizza Hut (303) 466-2367 6445 W 120th Ave, Broomfield, CO 80020

2. Papa John's 5160 W 120TH AVE Broomfield, CO 80020-3305

Phone: (303)469-6262

Distance: 4.07 miles

menu as of 4/17/2008

3. Richie's Neighborhood Pizzeria (720) 887-3434 DON'T KNOW IF THEY DELIVER but they're in FlatIrons mall.

OWASP Threat Risk Modeling guidelines

Well-written, well-referenced SQL injection article

Cool MS Ace Team Blog (this is a previous version of the 'How OWASP Works' page which contains some ideas about the future)

And finally, if you haven't seen this amazing page created by Sebastien a while back with descirptions and links to past OWASP presentations, you must check it out now:

Of particular interest:

Click here to post events on the OWASP Community calendar

Recruiting Tips - if you need to hire a WebAppSec or AppSec specialist

1. Join this chapter's mailing list and publish to the chapter.

2. Publish to Security Focus's jobs list.

3. Publish to the Yahoo CISSP-jobs list.

4. Publish to local job boards such as RMIUG-Jobs

5. Show up at a meeting, schmooze, and let it be known during the pizza or chapter business portion that YOU ARE HIRING.

6. Include the term OWASP in your ad to make it easily searchable by likely candidates. Consider verbage like:

  • Ability to write code to reduce OWASP Top 10 bugs
  • Ability to test code for OWASP Top 10 bugs
  • Ability to manage Development Teams to adhere to OWASP guidelines