Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 Denial Of Service

[Suggested description]An issue was discovered on Sannce Smart HD Wifi Security Camera EAN 2 950004 595317 devices.
A crash and reboot can be triggered by crafted IP traffic, as demonstrated by the Nikto vulnerability scanner.
For example, sending the 111111 string to UDP port 20188 causes a reboot. To deny service for a long time period,
the crafted IP traffic may be sent periodically.

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[VulnerabilityType Other]Denial of Service due to incorrect error handling

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[Vendor of Product]Sannce

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[Affected Product Code Base]Sannce Smart HD Wifi Security Camera – EAN nr: 2 950004 595317

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[Affected Component]Webserver, custom UDP handling binary.

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[Attack Type]Remote

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[Impact Denial of Service]true

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[Attack Vectors]Any attacker capable of reaching the device with a network packet is capable of causing a DoS.

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[Has vendor confirmed or acknowledged the vulnerability?]true

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[Discoverer]Willem Westerhof, Jasper Nota, Martijn Baalman from Qbit cyber security in cooperation with the Dutch Consumer organisation.

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[Reference]https://www.sannce.com

Use CVE-2019-20463.