CVE-2021-0692 : Vulnerability Insights and Analysis

Android operating systems are prone to a vulnerability that allows local escalation of privilege without the need for user interaction. An unsafe PendingIntent in FirstScreenBroadcast.java's sendBroadcastToInstaller could potentially trigger activity launch, posing a security risk.

Understanding CVE-2021-0692

This CVE affects Android versions 11, 10, and 9, enabling attackers to exploit the vulnerability without additional execution privileges.

What is CVE-2021-0692?

The vulnerability in the Android operating system allows for local privilege escalation through an unsafe PendingIntent in FirstScreenBroadcast.java.

The Impact of CVE-2021-0692

The security flaw could allow threat actors to escalate privileges locally without requiring user interaction, leading to potential security breaches.

Technical Details of CVE-2021-0692

The technical details of CVE-2021-0692 include:

Vulnerability Description

The vulnerability arises due to an unsafe PendingIntent in FirstScreenBroadcast.java, potentially leading to local escalation of privilege.

Affected Systems and Versions

Android versions 11, 10, and 9 are affected by this security flaw, leaving them susceptible to exploitation.

Exploitation Mechanism

Attackers can exploit this vulnerability to elevate privileges locally without the need for additional execution privileges.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-0692, consider the following steps:

Immediate Steps to Take

Apply security patches provided by Android promptly.
Monitor for any suspicious activities or unauthorized privileges on affected devices.

Long-Term Security Practices

Regularly update the Android operating system to the latest version.
Educate users on cybersecurity best practices to prevent successful exploitation of vulnerabilities.

Patching and Updates

Regularly check for security updates from Android, and ensure they are promptly applied to all vulnerable devices.