CVE-2018-3899 : Exploit Details and Defense Strategies

Yi Home Camera 27US 1.8.7.0D QR code scanning feature vulnerability allows code execution through buffer overflow.

Understanding CVE-2018-3899

Yi Home Camera 27US 1.8.7.0D is susceptible to a code execution vulnerability via a specially crafted QR Code.

What is CVE-2018-3899?

The vulnerability in the QR code scanning feature of Yi Home Camera 27US 1.8.7.0D enables malicious actors to trigger a buffer overflow, leading to code execution.

The Impact of CVE-2018-3899

CVSS Base Score: 8.3 (High)
Attack Vector: Network
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Confidentiality, Integrity, and Availability Impact: High
Scope: Changed
Exploitation of this vulnerability can result in unauthorized code execution.

Technical Details of CVE-2018-3899

Yi Home Camera 27US 1.8.7.0D vulnerability specifics.

Vulnerability Description

The trans_info function in Yi Home Camera 27US 1.8.7.0D allows overwriting a buffer beyond its limits, potentially leading to code execution.

Affected Systems and Versions

Affected Product: Yi Technology Home Camera 27US 1.8.7.0D

Exploitation Mechanism

The vulnerability can be exploited by crafting a QR Code to trigger a buffer overflow, ultimately executing unauthorized code.

Mitigation and Prevention

Protecting systems from CVE-2018-3899.

Immediate Steps to Take

Disable QR code scanning feature on affected devices.
Implement network segmentation to limit exposure.
Regularly update firmware and security patches.

Long-Term Security Practices

Conduct regular security assessments and penetration testing.
Educate users on safe QR code usage and cybersecurity best practices.

Patching and Updates

Apply vendor-supplied patches promptly to address the vulnerability.