Web Hack List

Later archive addition

How to Shop for Free Online: Security Analysis of Cashier-as-a-Service Based Web Stores

Researchers broke real cashier-as-a-service checkouts (PayPal, Amazon Payments, Google Checkout) as integrated by NopCommerce, Interspire, Buy.com and JR.com: a shopper calling merchant and cashier web APIs out of order can set his own price, reuse one payment, or avoid paying entirely. Re-checking Interspire's logic with the Poirot verifier found every manual flaw plus a shorter attack.

Record

Researcher
Rui Wang, Shuo Chen, XiaoFeng Wang and Shaz Qadeer
Format
Whitepaper

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This page is the archive's own catalogue record. The research is the work of Rui Wang, Shuo Chen, XiaoFeng Wang and Shaz Qadeer, first published at the original source. Preserved copies are kept so the citation survives its host.