CVE-2018-3928 : Security Advisory and Response

A vulnerability in the firmware update feature of Yi Home Camera 27US 1.8.7.0D allows for code execution and denial of service attacks through specially crafted UDP packets.

Understanding CVE-2018-3928

This CVE involves a security flaw in the firmware update functionality of Yi Home Camera 27US 1.8.7.0D, potentially leading to code execution and service disruption.

What is CVE-2018-3928?

The vulnerability in the firmware update feature of Yi Home Camera 27US 1.8.7.0D enables attackers to execute code and disrupt services by manipulating settings through specific UDP packets.

The Impact of CVE-2018-3928

CVSS Base Score: 7.5 (High)
Attack Vector: Network
Attack Complexity: Low
Availability Impact: High
The vulnerability does not require user interaction and can be exploited remotely, impacting the availability of the system.

Technical Details of CVE-2018-3928

This section provides detailed technical information about the CVE.

Vulnerability Description

The vulnerability allows attackers to exploit the firmware update feature of Yi Home Camera 27US 1.8.7.0D to execute arbitrary code and disrupt services by sending specially crafted UDP packets.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can trigger the vulnerability by sending a specific series of UDP packets to manipulate camera settings, leading to a denial of service.

Mitigation and Prevention

Protecting systems from CVE-2018-3928 requires immediate actions and long-term security practices.

Immediate Steps to Take

Disable remote access to the camera if not required.
Implement network segmentation to isolate vulnerable devices.
Monitor network traffic for any suspicious UDP packet activity.

Long-Term Security Practices

Regularly update camera firmware to patch known vulnerabilities.
Conduct security assessments to identify and address potential weaknesses in IoT devices.

Patching and Updates

Apply security patches provided by Yi Technology to address the vulnerability in the affected version of the camera.