In display fingerprint reader technology is widely considered an starbucks cover iphone 5s up and coming feature to be used in a number of flagship model phones introduced in 2019 by top OEM phone makers,according to Tencent Xuanwu Lab which is credited for first identifying the flaw earlier this year.
our research on this, we found all cover off white iphone 8 plus the in display fingerprint sensor module suffer the same problem no matter where it was manufactured by whatever vendors, said Yang Yu, a researcher at Xuanwu Lab. vulnerability is a design fault of custodia cover iphone 6 6s in display fingerprint sensors. are allphones tested in the first chiara ferragni cover iphone 7 plus half of 2018 that had in display fingerprint sensors, said Yu.
That includes current models of Huawei Technologies Porsche Design Mate RS and Mate 20 Pro model phones. Yu said thatmany more cellphone manufacturers are impacted by the issue.
Other phones that use the feature include Vivo Communication Technology V11 Pro, X21 and Nex ; and OnePlus 6T and Xiaomi Mi 8 Explorer Edition phones. Vivo, OnePlus and Xiaomi did not respond to requests for comment from Threatpost.
In display fingerprint readers based on optical fingerprint imaging, experts believe, will soon replace conventional authentication based on capacitance sensor fingerprint scanners. In display readers allow for a user to place a finger on the screen of a smartphone where cover samsung galaxy s8 tpu a scanner from cover samsung galaxy j1 2016 cover behind the display can verify a fingerprint, authenticate the user and unlock the phone.
Design wise the feature allows phones to cover originale apple iphone x be sleeker and less cluttered, supporting infinity displays. Usability advantages include the ability to unlock the phone simply by placing your finger on the phone screen at any angle, whether it sitting on a table or in a car mount.
The cover samsung galaxy j5 2017 disney vulnerability, which Huawei issued a patch (CVE 2018 7929) for in September, can be custodia cover huawei mate 20 lite exploited in a matter of seconds, researchers said. In an exclusive interview with Threatpost on the flaw Yu said all an attacker needs to carry samsung galaxy note 9 hoesje out the attack is an opaque reflective material such as aluminum foil. By placing the reflective material over a cover iphone 6 teschio residual fingerprint on the phone display the capacitance fingerprint imaging mechanism can be tricked into authenticating a fingerprint.
Capacitance Sensors vs. Optical
Optical Sensor Click to Zoom Courtesy Bayometric
The difference between capacitance and optical technologies is, while optical fingerprint readers use an image sensor to capture the imprint of the surface of cover batteria esterna iphone 6 the fingertip, capacitance scanners use a pixel array of capacitors to create the image of fingerprints. The sensor only works with OLED displays (requiring a backlit display) and reads fingerprints via peering through the gaps between pixels.
Using in display fingerprint reading technology, when a finger touches the screen, the screen will emit light and highlight fingerprint traces on the screen, and at the same iphone cover 5se time, the sensor underneath the screen will capture the image of the fingerprint.
However, Yu found cover samsung s6 chiuse there is a weakness in the way sensors handle residual fingerprints. In a test placing an opaque reflective material over the in display sensor, Yu was able to trick it and unlock the phone.
Capacitive Sensor Click to Zoom Courtesy Bayometric
is a not big problem for previous cover amazon iphone 6 custodia cover huawei y7 2019 capacitance sensors, but for optical sensors, it lethal, said Yu. because [even through] the fingerprint residual is nearly transparent, the sensor will be aware of this in normal situations. to Yu, the reflective material amplifies the residual fingerprint, which makes the sensor think the residual print is real. the attacker can physically access a locked phone with a fairly good quality fingerprint residual on it, the attacker can unlock this phone cover samsung galaxy a10 in just one second with no problem, said Yu.
The Rise of In Display Sensors
In display fingerprint sensors first generated consumer buzz at the Consumer Electronics Show this past January with the rollout of a Vivo phone, which used a Synaptics in display fingerprint sensor. The month before, Synaptics said it had struck a deal with a five OEM that would integrate its Clear ID optical in display fingerprint sensors.
When Threatpost asked Synaptics for a comment on the flaw, a spokesperson for the company said Synaptics is currently participating in this market cover iphone 6 natalizie and is instead investing in other technologies with better ROI due to competition back cover iphone 5s gold from China.
One of those companies is China based Goodix, a company that makes the in display sensors for Huawei Porsche Design Mate RS along with baking its tech into Xiaomi 8 Explorer Edition, and Vivo NEX and Vivo X21 UD. The company did not respond to Threatpost inquiries for comment for this story.
Samsung is also keen on the technology and recently filed a patent for an in display fingerprint sensor. Huawei has released software updates to fix custodia cover samsung a10 the flaw in September and other vendors have similarly addressed the issue, according to Yu.
I can say is: we have tested many cellphones with in display fingerprint from different vendors, they all had the same problem, even if the modules they were using were from different chip manufacturers, he said. manufacturers have fixed this issue from the root, there won be vulnerability in later cellphones in theory…