How to Rob an Online Bank (and get away with it) - Acros Security

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HTTP Parameter Pollution(Transfer Amount)JSPPHPPOST /transfersource=1 & dest=2 & amount=100 & amount=100000source = request.getParameter(“source”) // 1amount = request.getParameter(“amount”) // 100IF NOT user_authorized_for(source) THEN ERROR()IF disposable(source) < amount THEN ERROR()Call BackEndTransaction(request)POST /BackEndTransactionsource=1 & dest=2 & amount=100 & amount=100000source = $_POST[“source”] // 1dest = $_POST[“dest”] // 2amount = $_POST[“amount”] // 100000IF NOT user_authorized_for(source) THEN ERROR()26
SQL Injection27
Page 4 and 5: Evolution Of E-banking AttacksPAST-
Page 6 and 7: Attacks Against Corporate UsersGoal
Page 8 and 9: Example: Published Corporate Certif
Page 10 and 11: Direct ResourceAccess10
Page 12: Direct Resource Access - URL Base64
Page 15 and 16: Transaction Creation ProcessI want
Page 17 and 18: Negative Numbers - A Devastating Ov
Page 19 and 20: Creating Money Out Of Thin AirNorma
Page 21 and 22: Normal OverdraftAccount #1:Account
Page 23 and 24: Luca Carettoni & Stefano di Paolaht
Page 25: HTTP Parameter Pollution(Source Acc
Page 29 and 30: SQL Injection - Messing With Transa
Page 31 and 32: SQL Injection - Messing With Transa
Page 33 and 34: Automated Signing Of Deposit Agreem
Page 35 and 36: Server-Side Code ExecutionExamples
Page 37 and 38: Other Attacks• Session Puzzling
Page 40 and 41: Knownat leastsince2001Asymmetric Cu
Page 43 and 44: http://blog.acrossecurity.com/2012/
Page 45 and 46: Apply45
Page 47 and 48: Apply: Bankers - Long Term• “Ph
Page 49: Mitja KolsekACROS d.o.o.www.acrosse

How to Rob an Online Bank (and get away with it) - Acros Security

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