Customers reporting OnePlus payment website was hacked and reported credit card fraud

Pierluigi Paganini January 16, 2018

Several customers of the Chinese smartphone manufacturer. OnePlus claim to have been the victim of fraudulent credit card transactions after making purchases on the company webstore.

A large number of OnePlus users claim to have been the victim of fraudulent credit card transactions after making purchases on the official website of the Chinese smartphone manufacturer.

Dozens of cases were reported through the support forum and on Reddit, the circumstance that credit cards had been compromised after customers bought a smartphone or some accessories from the OnePlus official website suggests it was compromised by attackers.

“I purchased two phones with two different credit cards, first on 11-26-17 and second on 11-28-17. Yesterday I was notified on one of the credit cards of suspected fraudulent activity, I logged onto credit card site and verified that there were several transactions that I did not make” claims one of the victims. “The only place that both of those credit cards had been used in the last 6 months was on the Oneplus website.”

Security researchers at Fidus analyzed the payment page after reading the claims on the official forum and discovered that card details are hosted ON-SITE exposing data to attacks.

“We stepped through the payment process on the OnePlus website to have a look what was going on. Interestingly enough, the payment page which requests the customer’s card details is hosted ON-SITE.” reads a blog post published by Fidus. “This means all payment details entered, albeit briefly, flow through the OnePlus website and can be intercepted by an attacker. Whilst the payment details are sent off to a third-party provider upon form submission, there is a window in which malicious code is able to siphon credit card details before the data is encrypted.”

OnePlus Payment-Page-1024x579

The experts speculate the servers of the company website might have been compromised, likely the attackers exploited some flaws in the Magento eCommerce platform used by OnePlus.

There are two methods used by crooks to steal credit cards from Magento-based stores:

  • Using Javascript on client-side. The malicious JavaScript is hosted on the web page which causes the customer’s machine to silently send a crafted request containing the payment data to a server controlled by attackers. The researchers who analyzed the payment page on the OnePlus site did not find any malicious JavaScript being used.
  • The second method relies on the modification of the app/code/core/Mage/Payment/Model/Method/Cc.php file through a shell access to the server. The Cc.php file handles the saving of card details on the eCommerce website. Regardless if card details are actually saved or not, the file is called regardless. Attackers inject code into this file to siphon data.

OnePlus declared that it does not store any credit card data on its website and all payment transactions are carried out through a payment processing partner.

“At OnePlus, we take information privacy extremely seriously. Over the weekend, members of the OnePlus community reported cases of unknown credit card transactions occurring on their credit cards post purchase from We immediately began to investigate as a matter of urgency, and will keep you updated. ” reads the statement published by the company.
“No. Your card info is never processed or saved on our website – it is sent directly to our PCI-DSS-compliant payment processing partner over an encrypted connection, and processed on their secure servers. “
“The Chinese smartphone maker also confirms that purchases involving third-party services like PayPal are not affected.”

OnePlus excluded that its website is affected by any Magento vulnerability, since 2014, it has entirely been re-built using custom code.

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Pierluigi Paganini

(Security Affairs – OnePlus, credit card data)

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