Qkr! with MasterPass iOS Application - MITM SSL Certificate
"Qkr! with MasterPass is the secure and easy way to order and pay for
food and drinks from you iOS device.
With Qkr you can:
aC/ Discover Qkr merchants nearby.
aC/ Pre-order: Guests can order off the menu and pay ahead of time, then
collect their order from a pick-up point or have it delivered to their
seat or table
aC/ Create a free MasterPass account: Qkr uses MasterPass, MasterCardas
secure digital wallet solution that accepts MasterCard, Visa, American
Express and Discover Cards. The Apple Pay checkout option is coming
later this year
aC/ Access your eReceipts: you can easily review your Qkr order history in
the app or from emailed receipts.
Qkr is brought to you by MasterCard who processes 65,000 secure
transactions a minute so you know that your transaction is safe. No card
data is stored on your phone."
The Qkr! with MasterPass iOS application (version 5.0.6 and below), does
not validate the SSL certificate it receives when connecting to the
application login server.
An attacker who can perform a man in the middle attack may present a
bogus SSL certificate which the application will accept silently.
Sensitive information could be captured by an attacker without the
October 26, 2016 - Notified MasterCard via email@example.com
November 1, 2016 - Asked MasterCard to confirm that they received the
November 1, 2016 - MasterCard confirmed that they received the report
and provided it to the Qkr! team for remediation
December 9, 2016 - Asked MasterCard if they have a release date for the
January 2, 2017 - Advised MasterCard that the version released on
December 19th (5.0.8) resolves the issue
February 4, 2019 - Published an advisory to document the issue
Upgrade to version 5.0.8 or later
Thanks to the MasterCard Security team for their timely response