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OWASP Denver

Welcome to the Denver chapter homepage. Chapter leaders are Eric Duprey and David Campbell.


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

Wednesday, October 15th, 2008 at at Raytheon Polar Services

Centralized Security Functionality In a .NET World – The OWASP .NET ESAPI Project

The Enterprise Security Application Programming Interface, or ESAPI, is a one-stop security shop for developers looking to implement security mechanisms in their code. The brainchild of Jeff Williams, one of the founders of OWASP, the ESAPI is an open source project that has gained traction with organizations looking to implement secure applications using tried and tested code that is also well organized and consistent. It includes functionality for validating and encoding data, authenticating and authorizing users, logging, error handling, and more. The API includes a Java reference implementation that can be extended to allow any organization to integrate security functionality into their Java/JEE applications.

But what about .NET? Many organizations are banking on the powerful Microsoft programming framework to help them deliver robust and secure software. However, like Java, .NET tends to leave it up to the end-user programmers to get security code right. The OWASP .NET ESAPI project intends to help .NET developers avoid introducing security vulnerabilities into their code by providing a full port of the original ESAPI project from Java to C#.

This talk will explore the gains, gripes, and gotchas of converting the ESAPI to .NET from the .NET ESAPI project lead himself. It will discuss features of the .NET frameworks security model, key differences between the Java and .NET platforms, and ASP.NET web security issues. Additionally, future ideas for .NET specific functionality will be proposed and discussed. Participation and feedback from the attendees is expected and encouraged.

Speaker: Alex Smolen of Foundstone

Alex Smolen of Foundstone

Alex Smolen is a Software Security Consultant at Foundstone, where he provides security consulting services to clients to help find, fix, and prevent security vulnerabilities in enterprise software. His duties include threat modeling, code review, penetration testing, and secure software development lifecycle (S-SDLC) design and implementation. He is also an instructor for the Writing Secure Code, Building Secure Software, and Ultimate Web Hacking courses.

Experience Alex has been working in software development for a decade and has participated in and led several development projects in ASP.NET, Java, and Ruby on Rails. His primary interests include the integration of security into software development life cycles, evaluating the business impact of information security, and the security of emerging technologies. Alex is a contributing member of the software security community and has participated in several open-source security projects.

Prior to joining Foundstone, Alex was the Security Solutions Manager at Parasoft Corporation, where he led the development of tools and methodologies for helping clients ensure application security from the ground up.

Notable Accomplishments Alex is one of 24 recipients worldwide of the Microsoft MVP Award for Visual Developer, Security Alex has spoken at the following conferences: • Enterprise Architect Summit, 2005

• Better Software, 2005

• OWASP Conference, 2005

• SD West, 2007

• SD Best Practices, 2007

Alex has published the following articles: • Enterprise Architect, “Is Your Application Security Up to Spec?” • Java Developers Journal, “How to Create Secure Web Applications With Struts”

Alex is the author of Hacme Casino, available on Foundstone’s web site.

Professional Education

Alex graduated from the University of California, Berkeley, with a BS in Electrical Engineering and Computer Science (EECS).


6-6:30 Dinner (at Raytheon Polar Services; pizza provided by Fishnet Security)

6:30 - 6:40 Chapter business

6:40 - 8:00 Presentation and Q&A

Following the meeting we will have informal discussions over beverages at JD's Bait Shop

Questions, Comments

Questions can be directed to

Future Meetings

October 2008: ASP .NET ESAPI: Alex Smolen

November & December 2008: cancelled due to holiday season

January 2009: Hands-on Technical Workshop

February 2009: SnowFROC!

March 2009: Anton Rager: XSS Exploits and Defenses in Depth

Back to OWASP Denver

Past Meetings

September 2008: John Dickson: Black Box vs. White Box: Different App Testing Strategies

August 2008: Dan Cornell: Static Analysis

July 2008: David Byrne & Eric Duprey: Grendel-Scan

June 2008: Front Range OWASP Conference: Jeremiah Grossman, Robert Hansen, and more!

May 2008: David Campbell & Eric Duprey: XSS Attacks & Defenses

April 2008: Ryan Barnett: Virtual Patching with ModSecurity

February 2008: Michael Sutton: SQL Injection Revisited

June 2007

April 2007

February 2007

January 2007

November 2006

Chapter Planning Pages

Front Range Web Application Security Summit Planning