Vulnerability identifier: #VU15690

Vulnerability risk: High

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3900

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Yi Home Camera
Hardware solutions / Firmware

Vendor: YI Technology

Description
The vulnerability allows a remote high-privileged attacker to execute arbitrary code on the target system.

The vulnerability exists due to stack-based buffer overflow in the QR code scanning functionality during insufficient sanitization of user-supplied data. A remote attacker can trick the victim into displaying and scanning QR code from the internet to their camera, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to the latest version.

Vulnerable software versions

Yi Home Camera: 27US 1.8.7.0D

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External links
http://talosintelligence.com/vulnerability_reports/TALOS-2018-0572

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.