CVE-2021-1020 : What You Need to Know
Learn about CVE-2021-1020 affecting Android devices running version 12. Understand the vulnerability, impact, and mitigation strategies to prevent privilege escalation risks.
A vulnerability, identified as CVE-2021-1020, affects Android devices running version 12. The flaw resides in the snoozeNotification function of NotificationListenerService.java, potentially enabling a local attacker to disable notifications for any user, leading to an elevation of privilege. This exploit requires user interaction for successful implementation.
Understanding CVE-2021-1020
This section delves into the specifics of CVE-2021-1020.
What is CVE-2021-1020?
The CVE-2021-1020 vulnerability in Android devices running version 12 allows an attacker to locally escalate privileges by disabling notifications for any user through the snoozeNotification function.
The Impact of CVE-2021-1020
The impact of this vulnerability could lead to unauthorized notification control and potential privilege escalation, highlighting the critical need for a prompt patch.
Technical Details of CVE-2021-1020
Explore the technical aspects of CVE-2021-1020 in this section.
Vulnerability Description
The flaw arises from inadequate input validation in the snoozeNotification function, facilitating an attacker to manipulate notifications and execute privilege escalation attacks.
Affected Systems and Versions
Android devices using version 12 are susceptible to CVE-2021-1020, rendering them vulnerable to privilege escalation through notification manipulation.
Exploitation Mechanism
The exploit involves leveraging the snoozeNotification function to disable notifications for any user, requiring user interaction to initiate privilege escalation.
Mitigation and Prevention
Discover the mitigation strategies and preventive measures for CVE-2021-1020 below.
Immediate Steps to Take
It is imperative to apply security patches promptly to address the CVE-2021-1020 vulnerability and prevent potential privilege escalation attacks.
Long-Term Security Practices
Implement robust security measures, such as regular security updates and user awareness training, to enhance overall protection against similar exploits.
Patching and Updates
Vendor-supplied patches are essential to remediate CVE-2021-1020 effectively; ensure timely installation of security updates to mitigate the associated risks.