CVE-2021-0307 : Vulnerability Insights and Analysis
Learn about CVE-2021-0307, a critical vulnerability in Android versions 10 and 11 that enables local privilege escalation for malicious apps, posing potential privacy and security risks.
The CVE-2021-0307 vulnerability found in Android versions 10 and 11 poses a risk of local privilege escalation. The flaw in PermissionManagerService.java can be exploited by a malicious app to gain dangerous permissions without user interaction.
Understanding CVE-2021-0307
This section will delve into the nature of the CVE-2021-0307 vulnerability.
What is CVE-2021-0307?
The vulnerability in updatePermissionSourcePackage of PermissionManagerService.java allows for automatic runtime permission granting, leading to local privilege escalation. Attackers can gain access to critical permissions without explicit user consent.
The Impact of CVE-2021-0307
The exploitation of this vulnerability could result in malicious apps elevating privileges, potentially accessing sensitive data without user awareness.
Technical Details of CVE-2021-0307
Let's explore the technical aspects of CVE-2021-0307.
Vulnerability Description
The flaw enables unauthorized apps to silently acquire dangerous permissions, increasing the risk of privacy breaches and unauthorized data access.
Affected Systems and Versions
Android versions 10 and 11 are susceptible to this vulnerability, putting a significant number of users at potential risk.
Exploitation Mechanism
Exploiting the CVE-2021-0307 vulnerability requires no user interaction, making it easier for attackers to gain escalated privileges discreetly.
Mitigation and Prevention
Here are the essential steps to mitigate and prevent the CVE-2021-0307 vulnerability.
Immediate Steps to Take
Users should update their Android devices to the latest security patches to mitigate the risk of exploitation.
Long-Term Security Practices
Practicing good app hygiene and being cautious when granting permissions can help prevent unauthorized access to sensitive data.
Patching and Updates
Regularly updating Android devices with the latest security patches from reputable sources is crucial in ensuring protection against known vulnerabilities.