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Vulnerability in Amazon Photographs Android App Uncovered Consumer Info

By Ionut Arghire on June 30, 2022

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Cybersecurity agency Checkmarx has printed particulars on a high-severity vulnerability within the Amazon Photographs Android utility that would have allowed malicious apps to steal an Amazon entry token.

With greater than 50 million downloads, Amazon Photographs affords cloud storage, permitting customers to retailer photographs and movies at their authentic high quality, in addition to to print and share photographs, and to show them on a number of Amazon gadgets.

In November 2021, Checkmarx researchers recognized a problem within the utility that would have leaked the Amazon entry token to malicious purposes on the person’s gadget, probably exposing the person’s private data. The bug was addressed in December 2021.

The leaked Amazon entry token is used for person authentication throughout Amazon APIs, together with some that include private data resembling names, addresses, and emails. Via the Amazon Drive API, for instance, the attacker might entry the person’s information, Checkmarx says.

The problem, the researchers clarify, resided in a misconfigured part that was “exported within the app’s manifest file, thus permitting exterior purposes to entry it.”

The problem resulted within the entry token being despatched within the header of a HTTP request, however crucial facet was the truth that an attacker might management the server receiving this request.

“The exercise is asserted with an intent-filter utilized by the appliance to determine the vacation spot of the request containing the entry token. Understanding this, a malicious utility put in on the sufferer’s cellphone might ship an intent that successfully launches the weak exercise and triggers the request to be despatched to a server managed by the attacker,” Checkmarx notes.

The leaked token might present the attacker with entry to all the person data out there by the Amazon API. Utilizing the Amazon Drive API, the attacker might entry customers’ information and browse, re-write, or delete their contents.

The researchers additionally clarify that the entry token might have allowed anybody to switch information and erase their historical past, to stop restoration, or might have utterly deleted information and folders from the person’s Amazon Drive account.

“With all these choices out there for an attacker, a ransomware state of affairs was simple to provide you with as a probable assault vector. A malicious actor would merely have to learn, encrypt, and re-write the client’s information whereas erasing their historical past,” the researchers say.

The vulnerability may need had a wider affect, on condition that the doubtless affected APIs that the researchers recognized signify solely a small subset of all the Amazon ecosystem, Checkmarx additionally notes.

Associated: Amazon RDS Vulnerability Led to Publicity of Credentials

Associated: ‘MaliBot’ Android Malware Steals Monetary, Private Info

Associated: Google Patches Essential Android Vulnerabilities With June 2022 Updates

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