Comment Re:Banking & Finance Technical Debt (Score 1) 31
That supposed newer software has fewer vulnerabilities than older software.
Broadly speaking that is likely true, you python backed REST service with SPA front-end, is not probably going to suffer from memory saftey issue like the C based CGI program it replaced. I'll grant you that, but I don't see any evidence at all out there to supposed it is not as target rich in terms of authorization/authentication/business logic flaws as anything it replaced.
I don't have experience with BOA but I do have system experience in other megabanks and I can tell you most of them have a front-end/backend architecture where the system of record that actually does settlements has quite a lot of isolation in front of it and separately enforces transaction rules. If for example you found an IDOR in the web banking application and you swapped your account ID in an internal transfer for an account not your own which you discovered by whatever means as the funds source to one of your other accounts as the destination, it *might* let move the money. The system might treat you like you have the money for the rest of the day. So you might be able to pay other people within the institution etc (where they can roll it back) or take money from an ATM. However when the backend processes all the transactions from the day to do settlements it will be REJECTED by some old hunk of COBOL or maybe...Java..
They will clean it up and come after you.. That is real reason a lot of these bugs don't probably get exercised. It isn't that people using the public components of these systems don't see interesting things breeze by their browser consoles or even burp suite instances, they probably do, they just know even if it worked they are 100% going to be caught; and their Jubilee would last about a day before turning into something that looks more like Revelation.