A billion or more Android devices are vulnerable to hacks that can turn them into spying tools by exploiting more than 400 vulnerabilities in Qualcomm’s Snapdragon chip, researchers reported this week.
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The vulnerabilities can be exploited when a target downloads a video or other content that’s rendered by the chip. Targets can also be attacked by installing malicious apps that require no permissions at all.
From there, attackers can monitor locations and listen to nearby audio in real time and exfiltrate photos and videos. Exploits also make it possible to render the phone completely unresponsive. Infections can be hidden from the operating system in a way that makes disinfecting difficult.
Snapdragon is what’s known as a system on a chip that provides a host of components, such as a CPU and a graphics processor. One of the functions, known as digital signal processing, or DSP, tackles a variety of tasks, including charging abilities and video, audio, augmented reality, and other multimedia functions. Phone makers can also use DSPs to run dedicated apps that enable custom features.
“While DSP chips provide a relatively economical solution that allows mobile phones to provide end users with more functionality and enable innovative features—they do come with a cost,” researchers from security firm Check Point wrote in a brief report of the vulnerabilities they discovered. “These chips introduce new attack surf ..
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