CVE-2021-0673 : Security Advisory and Response
Discover how CVE-2021-0673 impacts Android devices with MediaTek chipsets through an Audio Aurisys HAL permission bypass vulnerability. Learn about the risks, affected systems, and mitigation steps.
Android devices with specific chipsets are vulnerable to a permission bypass issue in the Audio Aurisys HAL component. This vulnerability could allow an attacker to locally escalate privileges without requiring additional execution privileges or user interaction.
Understanding CVE-2021-0673
This CVE identifies a critical security flaw in the Audio Aurisys HAL component affecting a range of MediaTek chipsets used in Android devices.
What is CVE-2021-0673?
The CVE-2021-0673 vulnerability involves a missing permission check in the Audio Aurisys HAL component, potentially leading to the elevation of privilege on the affected Android devices.
The Impact of CVE-2021-0673
If exploited, this vulnerability could enable an attacker to gain elevated privileges on the device without the need for any user interaction, posing a significant security risk to affected devices.
Technical Details of CVE-2021-0673
The technical details of CVE-2021-0673 include:
Vulnerability Description
The vulnerability arises from a missing permission check in the Audio Aurisys HAL component, allowing attackers to escalate privileges locally.
Affected Systems and Versions
Devices with MediaTek chipsets, including MT6779, MT6873, MT6885, among others, running Android 10.0, 11.0, or 12.0 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability without the need for user interaction by leveraging the permission bypass issue in the Audio Aurisys HAL component.
Mitigation and Prevention
Protecting devices from CVE-2021-0673 requires immediate action and long-term security practices.
Immediate Steps to Take
- Apply patches provided by MediaTek to address the vulnerability, such as Patch ID ALPS05977326.
Long-Term Security Practices
- Regularly update your Android devices to the latest firmware to ensure all security patches are in place.
Patching and Updates
- Stay informed about security bulletins from vendors like MediaTek to apply timely patches and protect your devices from emerging threats.