CVE-2021-40016 Explained : Impact and Mitigation

This article provides details about an improper permission control vulnerability in Huawei's EMUI and Magic UI, impacting confidentiality.

Understanding CVE-2021-40016

This CVE involves an improper permission control vulnerability in the Bluetooth module of Huawei's EMUI and Magic UI.

What is CVE-2021-40016?

Vulnerability Type: Improper permission control
Products Affected: EMUI versions 10.1.0, 10.1.1, 11.0.0, 12.0.0; Magic UI versions 3.1.0, 3.1.1, 4.0.0
Vendor: Huawei
Impact: Confidentiality may be compromised

The Impact of CVE-2021-40016

The successful exploitation of this vulnerability has the potential to compromise the confidentiality of affected systems.

Technical Details of CVE-2021-40016

This section provides more detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability lies in the Bluetooth module of Huawei devices.

Affected Systems and Versions

Huawei EMUI versions 10.1.0, 10.1.1, 11.0.0, 12.0.0
Huawei Magic UI versions 3.1.0, 3.1.1, 4.0.0

Exploitation Mechanism

Improper permission control allows unauthorized access to the Bluetooth module, compromising confidentiality.

Mitigation and Prevention

Learn how to protect systems from this vulnerability.

Immediate Steps to Take

Apply security patches provided by Huawei promptly.
Monitor for any unauthorized Bluetooth access.

Long-Term Security Practices

Regularly update and patch systems to prevent vulnerabilities.
Implement network segmentation to restrict access to critical systems.
Conduct regular security audits and assessments.

Patching and Updates

Keep systems up to date with the latest firmware and security patches to mitigate the risk of exploitation.