Summary
Successful exploitation of these vulnerabilities could allow an attacker to receive sensitive information, execute application programmable interface (API) requests, or hijack devices.
Vulnerabilities 5
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Critical 9.3
CVE-2023-1748
The listed versions of Nexx Smart Home devices use hard-coded credentials. An attacker with unauthenticated access to the Nexx Home mobile application or the affected firmware could view the credentials and access the MQ Telemetry Server (MQTT) server and the…
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High 8.1
CVE-2023-1752
The listed versions of Nexx Smart Home devices could allow any user to register an already registered alarm or associated device with only the device’s MAC address.
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High 7.5
CVE-2023-1751
The listed versions of Nexx Smart Home devices use a WebSocket server that does not validate if the bearer token in the Authorization header belongs to the device attempting to associate. This could allow any authorized user to receive alarm information and s…
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High 7.1
CVE-2023-1750
The listed versions of Nexx Smart Home devices lack proper access control when executing actions. An attacker with a valid NexxHome deviceId could retrieve device history, set device settings, and retrieve device information.
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Medium 6.5
CVE-2023-1749
The listed versions of Nexx Smart Home devices lack proper access control when executing actions. An attacker with a valid NexxHome deviceId could send API requests that the affected devices would execute.
Revision history
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#1
CSAF Creation Date
References
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ICS Advisory ICSA-23-094-01 Web Version
https://www.cisa.gov/news-events/ics-advisories/icsa-23-094-01
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Recommended Practices
https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
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Recommended Practices
https://us-cert.cisa.gov/ics/Recommended-Practices
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Recommended Practices
https://cisa.gov/ics