Thursday, September 29, 2016

Hacking PayPal's Express Checkout



Do you know what is happening in the background when you buy something in an online shop using PayPal?

In this post we will tackle the following problems:
  • How can PayPal's API be tested?
  • How does PayPal's Express Checkout work? You can find the detailed report here.
  • How can we debit more money than authorized?

Read more »
By at
Labels:
Subscribe to: Posts (Atom)

Beliebte Posts

  • DTD Cheat Sheet
    When evaluating the security of XML based services, one should always consider DTD based attack vectors, such as XML External Entities (XXE)...
  • CORS misconfigurations on a large scale
    Inspired by James Kettle 's great OWASP AppSec Europe talk on CORS misconfigurations, we decided to fiddle around with CORS security i...
  • Printer Security
    Printers belong arguably to the most common devices we use. They are available in every household, office, company, governmental, medic...
  • How to Break Microsoft Rights Management Services
    In this post, we provide a security analysis of Microsoft Rights Management Services (RMS) and present two working attacks:  We complete...
  • How To Spoof PDF Signatures
    One year ago, we received a contract as a PDF file. It was digitally signed. We looked at the document - ignoring the "certificate is n...