CVE-2021-0356 Explained : Impact and Mitigation
Discover the impact of CVE-2021-0356, a critical command injection vulnerability in Android 10 and 11 allowing local privilege escalation without user interaction. Learn how to mitigate risks.
A command injection vulnerability was discovered in netdiag in Android versions 10 and 11, allowing local attackers to execute commands with elevated privileges without user interaction.
Understanding CVE-2021-0356
This CVE identifies a critical vulnerability in the Android operating system that could be exploited by attackers for privilege escalation.
What is CVE-2021-0356?
CVE-2021-0356 is a command injection vulnerability in netdiag of Android 10 and 11, potentially enabling attackers to escalate privileges locally.
The Impact of CVE-2021-0356
The vulnerability could lead to unauthorized execution of commands with elevated system privileges, posing a significant risk to the affected systems.
Technical Details of CVE-2021-0356
This section details the vulnerability's description, affected systems, and exploitation mechanism.
Vulnerability Description
Improper input validation in netdiag allows attackers to execute commands with elevated privileges on the affected Android versions.
Affected Systems and Versions
Android versions 10 and 11 are impacted by this vulnerability, potentially exposing them to privilege escalation attacks.
Exploitation Mechanism
Attackers can exploit the command injection flaw in netdiag without the need for user interaction, facilitating local privilege escalation.
Mitigation and Prevention
Protecting systems from CVE-2021-0356 involves immediate steps and long-term security practices to mitigate risks effectively.
Immediate Steps to Take
- Apply security patches provided by Android for the affected versions promptly.
- Monitor system logs for any suspicious activities that could indicate exploitation attempts.
Long-Term Security Practices
- Regularly update the Android OS and security patches to address known vulnerabilities.
- Implement least privilege access to limit the impact of successful attacks.
Patching and Updates
Stay informed about security updates and patches released by Android to address CVE-2021-0356 and other vulnerabilities effectively.