CVE-2021-25474 : Exploit Details and Defense Strategies

A vulnerability in Samsung Mobile Devices could allow an attacker to cause a denial of service on user devices.

Understanding CVE-2021-25474

This CVE involves an improper exception handling issue in SystemUI on Samsung Mobile Devices.

What is CVE-2021-25474?

The vulnerability allows an attacker to trigger a permanent denial of service on the device before a factory reset.

The Impact of CVE-2021-25474

With a CVSS base score of 4.4, this medium-severity vulnerability can lead to a sustained denial of service on affected devices.

Technical Details of CVE-2021-25474

The vulnerability is rated with a CVSS base score of 4.4, indicating a medium severity issue.

Vulnerability Description

The issue lies in improper exception handling for a specific value in SystemUI before the SMR Oct-2021 Release 1.

Affected Systems and Versions

Samsung Mobile Devices running versions Q(10.0) and R(11.0) prior to SMR Oct-2021 Release 1 are affected.

Exploitation Mechanism

An attacker with shell privileges could exploit this vulnerability locally.

Mitigation and Prevention

To address CVE-2021-25474, users and administrators should take immediate steps and adopt long-term security practices.

Immediate Steps to Take

Users should apply security updates provided by Samsung Mobile to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing strong access controls and regularly updating device software can help prevent similar vulnerabilities.

Patching and Updates

Users should ensure that their Samsung Mobile Devices are updated with the latest security patches from Samsung Mobile.