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Session Hijacking

Session Hijacking. Tarun Lall. What is Session Hijacking. TCP Connection Takeover Takeover of a Web Application Session. State Management. HTTP is Stateless Web Applications need state User Logins Shopping Carts. State Management, Cont’d. Client Side Server Side

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Session Hijacking

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  1. Session Hijacking Tarun Lall

  2. What is Session Hijacking • TCP Connection Takeover • Takeover of a Web Application Session

  3. State Management • HTTP is Stateless • Web Applications need state • User Logins • Shopping Carts

  4. State Management, Cont’d • Client Side • Server Side • Golden Rule of Web Application Security • Cookies and Hidden Fields

  5. Reasons for Session Hijacking • No Standards for Maintaining State • Session Tracking and State information at Client

  6. How to Prevent Session Hijacking • Session Identifiers Should Be Unique • Session Identifiers Should Not be Guessable • Session Identifiers Should Be Independent • Session Identifiers Should be Mapped with Client-Side Connections

  7. References • Web hacking Attacks and Defense by Stuart McClure, Saumil Shah, Shreeraj Shah • http://www.ftponline.com/javapro/2004_01/magazine/columns/proshop/default_pf.aspx • http://www.iss.net/security_center/advice/Exploits/TCP/session_hijacking/default.htm • http://staff.washington.edu/dittrich/talks/qsm-sec/script.html

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