CVE-2021-0472 : Vulnerability Insights and Analysis
Learn about CVE-2021-0472, a critical Android vulnerability (Android-11, 10, 9) allowing local privilege escalation without user interaction. Ensure prompt patching and security measures.
This article provides a detailed insight into CVE-2021-0472, a vulnerability found in Android that could potentially lead to a local escalation of privilege without requiring user interaction.
Understanding CVE-2021-0472
This section delves into the nature of the vulnerability and its implications.
What is CVE-2021-0472?
CVE-2021-0472 exists in shouldLockKeyguard of LockTaskController.java in Android, allowing an exit from App Pinning without a PIN, thus enabling a permissions bypass. This flaw could result in a local escalation of privilege without the need for extra execution privileges.
The Impact of CVE-2021-0472
The impact of this vulnerability includes the potential for local attackers to elevate their privileges within the Android operating system, posing a risk to the security of affected devices.
Technical Details of CVE-2021-0472
This section details the technical aspects of the CVE-2021-0472 vulnerability.
Vulnerability Description
The vulnerability in LockTaskController.java allows unauthorized exit from App Pinning, leading to a permissions bypass and subsequent privilege escalation within Android systems.
Affected Systems and Versions
Android versions 11, 10, and 9 are affected by CVE-2021-0472, making devices running these versions susceptible to the privilege escalation vulnerability.
Exploitation Mechanism
The exploitation of CVE-2021-0472 does not require user interaction, as attackers can leverage the permissions bypass to escalate privileges locally within the Android environment.
Mitigation and Prevention
This section outlines steps to address and prevent exploitation of CVE-2021-0472.
Immediate Steps to Take
Users and administrators are advised to apply relevant security patches promptly to protect devices from potential exploitation of CVE-2021-0472.
Long-Term Security Practices
Implementing secure coding practices and regularly updating devices can help mitigate the risk of privilege escalation vulnerabilities like CVE-2021-0472.
Patching and Updates
Regularly monitoring and applying security updates issued by Android can help ensure that devices are protected against known vulnerabilities, including CVE-2021-0472.