Innocent Code

Sverre Huseby runs his own company selling courses and consultancy services in Web application security. Hea s an active participant on webappsec mail forum.

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 Sender Address. Appendix D: More Information. Acronyms. References. Index.