CVE-2021-0896 Explained : Impact and Mitigation
Learn about CVE-2021-0896 found in apusys, enabling local privilege escalation without user interaction. Mitigation steps and affected systems detailed.
A vulnerability has been identified in apusys which could allow an attacker to perform an out of bounds write. This could lead to a local escalation of privilege without the need for user interaction.
Understanding CVE-2021-0896
This section will provide an overview of the impact, technical details, and mitigation steps for CVE-2021-0896.
What is CVE-2021-0896?
CVE-2021-0896 is a vulnerability found in apusys that lacks bounds checking, potentially allowing an attacker to execute arbitrary code with elevated privileges.
The Impact of CVE-2021-0896
The vulnerability could be exploited to achieve local escalation of privilege within the affected systems without requiring any user interaction, posing a significant security risk.
Technical Details of CVE-2021-0896
Let's delve into the specific technical aspects of the vulnerability including its description, affected systems, and the exploitation mechanism.
Vulnerability Description
The flaw in apusys arises due to a missing bounds check, enabling an attacker to trigger an out of bounds write, which could be leveraged to escalate privileges.
Affected Systems and Versions
The vulnerability affects multiple MediaTek products including MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8195, MT8791, and MT8797 running Android versions 10.0, 11.0, and 12.0.
Exploitation Mechanism
Exploiting this vulnerability does not require any user interaction, making it especially dangerous as it grants the attacker the ability to escalate privileges within the system.
Mitigation and Prevention
This section outlines the steps to mitigate the impact of CVE-2021-0896 and prevent any potential exploitation.
Immediate Steps to Take
Users are advised to apply the provided patch ID: ALPS05672107 to address the vulnerability and enhance the security posture of the affected systems.
Long-Term Security Practices
In addition to patching, it is recommended to implement robust security practices such as regular security updates, access controls, and network segmentation to strengthen the overall security.
Patching and Updates
Regularly monitor for security updates from MediaTek and apply patches promptly to safeguard against known vulnerabilities.