Google Project Zero white-hat hacker Natalie Silvanovich discovered a logical vulnerability in the Signal messaging app for Android that could be exploited by a malicious caller to force a call to be answered at the receiver’s end without requiring his interaction.
This means that the attacker could spy on the receiver through the microphone of his device.
However, the Signal vulnerability can only be exploited if the receiver fails to answer an audio call over Signal, eventually forcing the incoming call to be automatically answered on the receiver’s device.
The logical vulnerability resides in a method
“In the Android client, there is a method
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