CVE-2021-1039 : Exploit Details and Defense Strategies
Learn about CVE-2021-1039 impacting Android versions 10, 11, 12, and 9. Understand the Elevation of Privilege (EoP) risk due to tapjacking/overlay attack and how to mitigate the security threat.
Android versions 10, 11, 12, and 9 are affected by a vulnerability in NotificationAccessActivity of AndroidManifest.xml, leading to a possible Elevation of Privilege (EoP) due to tapjacking/overlay attack.
Understanding CVE-2021-1039
This CVE pertains to a security issue in Android versions 10, 11, 12, and 9 that could allow an attacker to locally escalate privileges without requiring additional execution privileges.
What is CVE-2021-1039?
The vulnerability in NotificationAccessActivity of AndroidManifest.xml in affected Android versions could enable an attacker to carry out a tapjacking/overlay attack, potentially leading to an Elevation of Privilege (EoP) without the need for extra execution privileges.
The Impact of CVE-2021-1039
If exploited, this vulnerability could result in local escalation of privilege, allowing malicious actors to gain higher access levels without additional permissions.
Technical Details of CVE-2021-1039
This section will provide insights into the vulnerability description, affected systems, and the exploitation mechanism.
Vulnerability Description
The vulnerability in NotificationAccessActivity of AndroidManifest.xml allows for a tapjacking/overlay attack, creating a potential Elevation of Privilege (EoP) scenario without requiring extra execution privileges.
Affected Systems and Versions
Android versions 10, 11, 12, and 9 are impacted by this vulnerability where NotificationAccessActivity is susceptible to exploit.
Exploitation Mechanism
The exploit involves user interaction to initiate the tapjacking/overlay attack in NotificationAccessActivity of AndroidManifest.xml on the affected Android devices.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-1039, immediate steps can be taken and long-term security practices can be implemented along with necessary patching and updates.
Immediate Steps to Take
Users are advised to be cautious and avoid interacting with suspicious overlays or prompts on their Android devices to prevent potential privilege escalation.
Long-Term Security Practices
Implementing security best practices such as regular system updates, installing patches, and avoiding untrusted sources can enhance the overall security posture.
Patching and Updates
Stay informed about security bulletins and update your Android devices with the latest patches to address vulnerabilities like CVE-2021-1039.