CVE-2018-11567
3.3 · LOWOverview
CVE-2018-11567 is a low-severity vulnerability affecting amazon echo_show_firmware. It was published on May 30, 2018 and has a CVSS 3.0 base score of 3.3 (LOW).
This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from amazon. Update echo_show_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| amazon | echo_show_firmware | >= 0, < 2018-04-27 | Affected |
| amazon | echo_plus_firmware | >= 0, < 2018-04-27 | Affected |
| amazon | echo_dot_firmware | >= 0, < 2018-04-27 | Affected |
| amazon | echo_spot_firmware | >= 0, < 2018-04-27 | Affected |
| amazon | echo_firmware | >= 0, < 2018-04-27 | Affected |
References
Frequently Asked Questions
What is CVE-2018-11567?
CVE-2018-11567 is a low-severity vulnerability affecting amazon echo_show_firmware. It was published on May 30, 2018 and has a CVSS 3.0 base score of 3.3 (LOW).
How severe is CVE-2018-11567?
This vulnerability has a CVSS 3.0 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2018-11567?
Check the references section for vendor advisories and patches from amazon. Update echo_show_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2018-11567?
CyberStrike's AI-powered security agents can automatically detect CVE-2018-11567 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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