Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
Prior to 2018-04-27, the reprompt feature in Amazon Echo devices could be misused by a custom Alexa skill. The reprompt feature is designed so that if Alexa does not receive an input within 8 seconds, the device can speak a reprompt, then wait an additional 8 seconds for input; if the user still does not respond, the microphone is then turned off. The vulnerability involves empty output-speech reprompts, custom wildcard ("gibberish") input slots, and logging of detected speech. If a maliciously designed skill is installed, an attacker could obtain transcripts of speech not intended for Alexa to process, but simply spoken within the device's hearing range. NOTE: The vendor states "Customer trust is important to us and we take security and privacy seriously. We have put mitigations in place for detecting this type of skill behavior and reject or suppress those skills when we do. Customers do not need to take any action for these mitigations to work.
CVSS Information
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Vulnerability Type
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Vulnerability Title
Amazon Echo 安全漏洞
Vulnerability Description
Amazon Echo是美国亚马逊（Amazon）公司的一款智能音箱设备。 Amazon Echo 2018-04-27之前版本中的reprompt功能存在安全漏洞。攻击者可利用该漏洞获取录制的用户语音。
CVSS Information
N/A
Vulnerability Type
N/A