CVE-2022-21777 : Vulnerability Insights and Analysis
Learn about CVE-2022-21777 affecting Autoboot in certain MediaTek devices, allowing local privilege escalation without additional permissions. Mitigation strategies included.
Autoboot in certain MediaTek devices is affected by a vulnerability that allows for a permission bypass, potentially leading to a local privilege escalation without the need for additional execution privileges. This issue could be exploited without user interaction.
Understanding CVE-2022-21777
This vulnerability impacts MediaTek devices running specified versions of Android, potentially allowing threat actors to escalate privileges without user consent.
What is CVE-2022-21777?
The CVE-2022-21777 vulnerability exists in Autoboot on MediaTek devices, enabling threat actors to bypass permissions and exploit the system for local privilege escalation.
The Impact of CVE-2022-21777
The vulnerability could be exploited to achieve local privilege escalation without requiring additional permissions, potentially posing a significant risk to affected devices.
Technical Details of CVE-2022-21777
The following technical details outline the specifics of this vulnerability.
Vulnerability Description
In Autoboot, a missing permission check allows threat actors to bypass security measures, leading to a local privilege escalation threat.
Affected Systems and Versions
Devices powered by MediaTek chipsets including MT6580, MT6735, MT6779, and more, running Android 11.0 and 12.0 are affected by this vulnerability.
Exploitation Mechanism
The vulnerability in Autoboot can be exploited by threat actors to escalate their privileges locally without the need for additional execution permissions.
Mitigation and Prevention
To address CVE-2022-21777 and enhance device security, follow these mitigation strategies:
Immediate Steps to Take
- Apply the provided Patch ID: ALPS06713894 to address the vulnerability immediately.
Long-Term Security Practices
Implement stringent security policies, regular vulnerability scanning, and ongoing security updates to prevent similar exploits.
Patching and Updates
Regularly update your MediaTek devices with the latest firmware releases and security patches to mitigate known vulnerabilities.