CVE-2018-20051 Explained : Impact and Mitigation

The Jooan JA-Q1H Wi-Fi camera with firmware version 21.0.0.91 is susceptible to a denial of service attack due to mishandling of the '>' symbol.

Understanding CVE-2018-20051

This CVE entry highlights a vulnerability in the Jooan JA-Q1H Wi-Fi camera that could be exploited by remote attackers.

What is CVE-2018-20051?

The CVE-2018-20051 vulnerability involves a flaw in the handling of the '>' symbol in the camera's firmware, leading to a crash and reboot when specific ONVIF methods are used.

The Impact of CVE-2018-20051

Remote attackers can trigger a denial of service condition on the affected camera by leveraging certain ONVIF methods like CreateUsers, SetImagingSettings, and GetStreamUri.

Technical Details of CVE-2018-20051

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from improper handling of the '>' symbol in the Jooan JA-Q1H Wi-Fi camera's firmware, allowing attackers to crash and reboot the device.

Affected Systems and Versions

Product: Jooan JA-Q1H Wi-Fi camera
Firmware Version: 21.0.0.91

Exploitation Mechanism

Attackers exploit this vulnerability by using specific ONVIF methods such as CreateUsers, SetImagingSettings, and GetStreamUri to trigger a denial of service attack.

Mitigation and Prevention

Protecting against CVE-2018-20051 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 IoT devices
Regularly monitor for unusual device behavior

Long-Term Security Practices

Keep firmware updated with the latest patches
Conduct regular security assessments and penetration testing
Educate users on secure configuration practices

Patching and Updates

Ensure timely installation of firmware updates provided by the camera vendor to address the vulnerability.