CVE-2018-3900 : What You Need to Know

Yi Technology Home Camera 27US 1.8.7.0D QR Code Scanning Vulnerability

Understanding CVE-2018-3900

Yi Technology Home Camera 27US 1.8.7.0D is affected by a critical vulnerability related to QR code scanning.

What is CVE-2018-3900?

The vulnerability in the QR code scanning feature of Yi Home Camera 27US 1.8.7.0D allows attackers to execute malicious code through a specially crafted QR code, leading to a buffer overflow and potential control over the camera's code.

The Impact of CVE-2018-3900

The vulnerability has a CVSS base score of 9.1, indicating a critical severity level with high impacts on confidentiality, integrity, and availability of the affected system.

Technical Details of CVE-2018-3900

Yi Technology Home Camera 27US 1.8.7.0D Vulnerability

Vulnerability Description

The vulnerability enables attackers to exploit the QR code scanning functionality to execute arbitrary code, potentially compromising the camera's security.

Affected Systems and Versions

Product: Yi Technology
Vendor: Yi
Version: Yi Technology Home Camera 27US 1.8.7.0D

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Privileges Required: High
User Interaction: None
Scope: Changed
Exploitation: By persuading a user to scan a malicious QR code or display a QR code from the internet on their camera.

Mitigation and Prevention

Protecting Against CVE-2018-3900

Immediate Steps to Take

Disable QR code scanning feature on the affected camera.
Regularly update camera firmware to patch known vulnerabilities.

Long-Term Security Practices

Educate users on safe QR code handling practices.
Implement network segmentation to limit the impact of potential attacks.

Patching and Updates

Apply security patches provided by Yi for the affected camera version.