CVE-2021-25484 : Exploit Details and Defense Strategies

This article provides details about CVE-2021-25484, focusing on the impact and mitigation of the vulnerability.

Understanding CVE-2021-25484

CVE-2021-25484 is a vulnerability in Samsung Mobile Devices that allows monitoring of touch events due to improper authentication in InputManagerService.

What is CVE-2021-25484?

The vulnerability, identified in Samsung Mobile Devices prior to SMR Oct-2021 Release 1, enables unauthorized monitoring of touch events.

The Impact of CVE-2021-25484

With a CVSS base score of 4 and medium severity, CVE-2021-25484 poses a risk of low confidentiality impact through unauthorized touch event monitoring.

Technical Details of CVE-2021-25484

The technical details include vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability arises from improper authentication in InputManagerService, which allows for the monitoring of touch events on affected Samsung Mobile Devices.

Affected Systems and Versions

Samsung Mobile Devices with versions O(8.1 go), Q(10.0 go), R(11.0 go) prior to SMR Oct-2021 Release 1 are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited locally, with low attack complexity, and does not require any special privileges or user interaction.

Mitigation and Prevention

Understanding the immediate and long-term steps to secure systems against CVE-2021-25484 is crucial.

Immediate Steps to Take

It is recommended to apply the SMR Oct-2021 Release 1 or later update to mitigate the vulnerability and prevent unauthorized touch event monitoring.

Long-Term Security Practices

In the long term, ensuring timely security updates and patch management practices can help protect systems from similar vulnerabilities.

Patching and Updates

Regularly check for security updates from Samsung Mobile to address known vulnerabilities and enhance the overall security posture of the devices.