CVE-2021-0407 : Vulnerability Insights and Analysis
Understand the impact and mitigation of CVE-2021-0407, a vulnerability in MediaTek processor, allowing local attackers to escalate privileges without user interaction in Android 10.0 and 11.0.
A detailed overview of CVE-2021-0407, including its description, impact, technical details, mitigation, and prevention measures.
Understanding CVE-2021-0407
This section provides insights into the vulnerability identified as CVE-2021-0407.
What is CVE-2021-0407?
CVE-2021-0407 involves a potential out-of-bounds write vulnerability in the clk driver, resulting from an incorrect bounds check. This flaw could allow a local attacker to escalate privileges without the need for user interaction, requiring System execution privileges for exploitation.
The Impact of CVE-2021-0407
The impact of CVE-2021-0407 is the potential elevation of privilege, posing a security risk to affected systems running Android 10.0 and 11.0. The vulnerability could be exploited for unauthorized privilege escalation.
Technical Details of CVE-2021-0407
Explore the technical aspects of CVE-2021-0407 in this section.
Vulnerability Description
The vulnerability stems from an inadequate bounds check within the clk driver, leading to a possible out-of-bounds write scenario. This could facilitate a local attacker in gaining escalated privileges.
Affected Systems and Versions
CVE-2021-0407 impacts systems running MediaTek processors, including MT6739, MT6761, MT6762, and more, with Android 10.0 and 11.0 versions.
Exploitation Mechanism
Exploiting CVE-2021-0407 does not necessitate user interaction, as the vulnerability can be leveraged by a local attacker to execute arbitrary code with elevated privileges.
Mitigation and Prevention
Learn about the steps to mitigate and prevent the exploitation of CVE-2021-0407.
Immediate Steps to Take
Immediate actions include applying patches and security updates to address the vulnerability promptly. System administrators are advised to monitor for any signs of exploitation.
Long-Term Security Practices
In the long term, practicing defense-in-depth strategies, restricting access privileges, and conducting regular security assessments can enhance overall system security.
Patching and Updates
Regularly update software and firmware to incorporate security patches released by vendors, such as those provided by MediaTek for mitigating vulnerabilities like CVE-2021-0407.