CVE-2020-0475 : What You Need to Know
Learn about CVE-2020-0475, a critical Android-11 vulnerability enabling local privilege escalation by intercepting input events without proper permission. Discover mitigation steps and the importance of timely patching.
Android-11 is susceptible to an elevation of privilege vulnerability, allowing the blocking and interception of input events without proper permission. User interaction is necessary for exploitation.
Understanding CVE-2020-0475
This CVE pertains to a vulnerability in Android-11 that can lead to local privilege escalation due to a missing permission check in WindowManagerService.java.
What is CVE-2020-0475?
- Vulnerability allows blocking and intercepting input events without the necessary permission check.
- Exploitation could result in local privilege escalation without requiring additional execution privileges.
The Impact of CVE-2020-0475
The potential consequence of this vulnerability is local escalation of privilege, highlighting the criticality of securing input event interception in Android-11.
Technical Details of CVE-2020-0475
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability exists in createInputConsumer of WindowManagerService.java in Android-11, enabling unauthorized blocking and interception of input events without the required permission verification.
Affected Systems and Versions
- Product: Android
- Versions: Android-11
Exploitation Mechanism
The flaw allows threat actors to intercept input events, potentially leading to the local escalation of privilege without the need for additional execution privileges.
Mitigation and Prevention
Safeguarding measures to address and prevent the CVE-2020-0475 vulnerability.
Immediate Steps to Take
- Apply security patches promptly to mitigate exploitation risks.
- Monitor and restrict user interactions to prevent unauthorized privilege escalation.
Long-Term Security Practices
- Implement strict input event handling protocols and permission verifications.
- Conduct regular security audits and assessments to identify and mitigate similar vulnerabilities.
Patching and Updates
Stay informed about security updates and patches released by Android for addressing CVE-2020-0475.