CVE-2022-20022 : Vulnerability Insights and Analysis

This article provides an in-depth analysis of CVE-2022-20022, a vulnerability in MediaTek devices that could result in a remote denial of service attack via Bluetooth.

Understanding CVE-2022-20022

CVE-2022-20022 pertains to a flaw in how Bluetooth handles connection attempts from a host with the same BD address as the currently connected host. Exploiting this vulnerability could lead to a remote denial of service attack with no additional execution privileges required, and no user interaction is necessary for exploitation.

What is CVE-2022-20022?

The vulnerability in Bluetooth on MediaTek devices allows a remote attacker to cause a link disconnection, resulting in a denial of service condition without needing any user interaction.

The Impact of CVE-2022-20022

The impact of CVE-2022-20022 is the potential remote denial of service to the Bluetooth feature on affected devices running Android 10.0 and 11.0. This could disrupt Bluetooth connectivity and services on the device.

Technical Details of CVE-2022-20022

CVE ID: CVE-2022-20022 CVSS Score: Pending Vector: Pending

Vulnerability Description

The vulnerability in Bluetooth on MediaTek devices could allow a remote attacker to disconnect the Bluetooth link, causing a denial of service condition.

Affected Systems and Versions

The affected systems include MediaTek devices running Android 10.0 and 11.0 with specific chipsets such as MT6580, MT6630, MT6735, and many others.

Exploitation Mechanism

Exploiting this vulnerability involves sending a connection attempt from a host with the same BD address as the currently connected Bluetooth host, leading to a potential denial of service attack.

Mitigation and Prevention

To mitigate the risks associated with CVE-2022-20022, users and organizations are advised to take the following steps:

Immediate Steps to Take

Apply the provided patch ID: ALPS06198578 to address the vulnerability in Bluetooth.

Long-Term Security Practices

Regularly update MediaTek devices to the latest firmware to ensure they are protected against known vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from MediaTek to promptly address any security issues affecting Bluetooth functionality on your devices.