CVE-2020-0227 : Vulnerability Insights and Analysis
Learn about CVE-2020-0227 affecting Android systems, allowing local privilege escalation. Discover mitigation steps and best practices for long-term security.
Android containers are affected by a vulnerability that could lead to privilege escalation through a permissions bypass in CompanionDeviceManagerService.java.
Understanding CVE-2020-0227
This CVE identifies an elevation of privilege vulnerability in Android systems.
What is CVE-2020-0227?
A missing permission check in onCommand of CompanionDeviceManagerService.java allows local escalation of privilege without requiring additional execution privileges, potentially enabling background data usage or launching from the background without user interaction.
The Impact of CVE-2020-0227
The vulnerability could be exploited to gain elevated privileges, posing a risk of unauthorized actions and access to sensitive data.
Technical Details of CVE-2020-0227
The following provides more technical insight into the CVE.
Vulnerability Description
- Type: Elevation of privilege
- Location: CompanionDeviceManagerService.java
- Risk: Local privilege escalation
Affected Systems and Versions
- Product: Android
- Versions Affected: Android-8.0, Android-8.1, Android-9, Android-10
Exploitation Mechanism
The vulnerability stems from a missing permission check in onCommand, potentially allowing an attacker to perform unauthorized actions and access sensitive information.
Mitigation and Prevention
Protect your systems and data from CVE-2020-0227 through the following measures.
Immediate Steps to Take
- Apply security patches promptly
- Monitor and restrict background data usage
- Implement strict permission controls
Long-Term Security Practices
- Regular security assessments and audits
- Provide security awareness training
Patching and Updates
- Stay informed about security bulletins
- Implement vendor-recommended patches and updates