This concise and practical book shows where code vulnerabilities lie-without delving into the specifics of each system architecture, programming or scripting language, or application-and how best to fix them Based on real-world situations taken from the author's experiences of tracking coding mistakes at major financial institutions Covers SQL injection attacks, cross-site scripting, data manipulation in order to bypass authorization, and other attacks that work because of missing pieces of code Shows developers how to change their mindset from Web site construction to Web site destruction in order to find dangerous code

* This concise and practical book shows where codevulnerabilities lie-without delving into the specifics of eachsystem architecture, programming or scripting language, orapplication-and how best to fix them* Based on real-world situations taken from the author'sexperiences of tracking coding mistakes at major financialinstitutions* Covers SQL injection attacks, cross-site scripting, datamanipulation in order to bypass authorization, and other attacksthat work because of missing pieces of code* Shows developers how to change their mindset from Web siteconstruction to Web site destruction in order to find dangerouscode

Foreword.Acknowledgments.Introduction.I.1 The Rules.I.2 The Examples.I.3 The Chapters.I.4 What is Not in this Book?I.5 A Note From the Author.I.6 Feedback.1. The Basics.1.1 HTTP.1.2 Sessions.1.3 HTTPS.1.4 Summary.1.5 Do You Want to Know More?2. Passing Data to Subsystems.2.1 SQL Injection.2.2 Shell Command Injection.2.3 Talking to Programs Written in C/C++.2.4 The Evil Eval.2.5 Solving Metacharacter Problems.2.6 Summary.3. User Input.3.1 What is Input Anyway?3.2 Validating Input.3.3 Handling Invalid Input.3.4 The Dangers of Client-side Validation.3.5 Authorization Problems.3.6 Protecting Server-generated Input.3.7 Summary.4. Output Handling: The Cross-site Scripting Problem.4.1 Examples.4.2 The Problem.4.3 The Solution.4.4 Browser Character Sets.4.5 Summary.; 4.6 Do You Want to Know More?5. Web Trojans.5.1 Examples.5.2 The Problem.5.3 A Solution.5.4 Summary.6. Passwords and Other Secrets.6.1 Crypto-stuff.6.2 Password-based Authentication.6.3 Secret Identifiers.6.4 Secret Leakage.6.5 Availability of Server-side Code.6.6 Summary.6.7 Do You Want to Know More?7. Enemies of Secure Code.7.1 Ignorance.7.2 Mess.7.3 Deadlines.7.4 Salesmen.7.5 Closing Remarks.7.6 Do You Want to Know More?8. Summary of Rules for Secure Coding.Appendix A: Bugs in the Web Server.Appendix B: Packet Sniffing.Appendix C: Sending HTML Formatted E-mails with Forged SenderAddress.Appendix D: More Information.Acronyms.References.Index.