Vulnerability identifier: #VU15692

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-3910

CWE-ID: CWE-78

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
Yi Home Camera
Hardware solutions / Firmware

Vendor: YI Technology

Description
The vulnerability allows an adjacent attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to a flaw in in the cloud OTA setup functionality during insufficient sanitization of user-supplied data. An adjacent attacker can trick the victim into connecting their camera to this SSID to inject arbitrary OS commands 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-2018-0580

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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