CVE-2021-0922 : Vulnerability Insights and Analysis

Android devices running Android-11 are impacted by a vulnerability in enforceCrossUserOrProfilePermission of PackageManagerService.java, potentially allowing a bypass of the INTERACT_ACROSS_PROFILES permission. This flaw could result in a local privilege escalation without requiring additional execution privileges. No user interaction is necessary for an attacker to exploit this vulnerability.

Understanding CVE-2021-0922

This section provides insights into the nature and impact of the CVE-2021-0922 vulnerability.

What is CVE-2021-0922?

CVE-2021-0922 is a privilege escalation vulnerability affecting Android-11 devices. It arises due to a missing permission check in PackageManagerService.java, enabling attackers to bypass the INTERACT_ACROSS_PROFILES permission.

The Impact of CVE-2021-0922

The vulnerability could be exploited by threat actors to achieve local privilege escalation on Android devices, potentially leading to unauthorized access and control over sensitive data.

Technical Details of CVE-2021-0922

Explore the specific technical aspects associated with CVE-2021-0922 to better understand its implications.

Vulnerability Description

The flaw in enforceCrossUserOrProfilePermission of PackageManagerService.java allows threat actors to bypass the INTERACT_ACROSS_PROFILES permission, facilitating a local privilege escalation attack.

Affected Systems and Versions

Android devices running Android-11 are confirmed to be impacted by CVE-2021-0922 due to the underlying vulnerability in PackageManagerService.java.

Exploitation Mechanism

By exploiting the missing permission check in enforceCrossUserOrProfilePermission, attackers can escalate their privileges locally, potentially gaining unauthorized access to system resources.

Mitigation and Prevention

Learn about the steps to mitigate the risks posed by CVE-2021-0922 and prevent potential security incidents.

Immediate Steps to Take

Users are advised to stay updated with security bulletins and patches released by Android to address CVE-2021-0922. It is crucial to apply security updates promptly to mitigate the risk of exploitation.

Long-Term Security Practices

Incorporating robust security practices, such as regular security audits, implementing least privilege access controls, and staying informed about emerging vulnerabilities, can enhance the overall security posture of Android devices.

Patching and Updates

Timely application of security patches and updates provided by Android is essential to remediate CVE-2021-0922 and other potential security vulnerabilities.