CVE-2021-0593 : Security Advisory and Response

An elevation of privilege vulnerability, CVE-2021-0593, affecting Android versions 8.1, 9, 10, and 11 has been discovered. The vulnerability allows an attacker to escalate their privileges without the need for user interaction, potentially leading to local privilege escalation.

Understanding CVE-2021-0593

This section provides insights into the nature of the vulnerability and its impact.

What is CVE-2021-0593?

CVE-2021-0593 is an elevation of privilege vulnerability that exists due to a confused deputy scenario in the sendDevicePickedIntent function of DevicePickerFragment.java in Android. This flaw enables an attacker to invoke a privileged broadcast receiver, leading to potential local privilege escalation.

The Impact of CVE-2021-0593

The impact of this vulnerability is severe as it allows attackers to gain elevated privileges on the affected Android devices without requiring any user interaction. This privilege escalation could be exploited for malicious purposes.

Technical Details of CVE-2021-0593

Delve deeper into the technical aspects of the CVE-2021-0593 vulnerability.

Vulnerability Description

The vulnerability arises from a confused deputy scenario in the sendDevicePickedIntent function, allowing attackers to trigger a privileged broadcast receiver.

Affected Systems and Versions

Android versions 8.1, 9, 10, and 11 are affected by CVE-2021-0593, exposing them to potential local privilege escalation.

Exploitation Mechanism

With the exploitation of this vulnerability, threat actors can gain escalated privileges without any user interaction, posing a significant security risk.

Mitigation and Prevention

Learn how to mitigate the risks posed by CVE-2021-0593 and prevent potential exploitation.

Immediate Steps to Take

Users are advised to apply security patches provided by the vendor to address the CVE-2021-0593 vulnerability immediately.

Long-Term Security Practices

Employing robust security practices, such as regular software updates, security awareness training, and implementing least privilege access, can help prevent similar privilege escalation attacks in the future.

Patching and Updates

Regularly monitor security bulletins and apply patches released by Android to ensure your system is protected against CVE-2021-0593 and other security vulnerabilities.