CVE-2021-25511 Explained : Impact and Mitigation

A detailed analysis of CVE-2021-25511, an improper validation vulnerability affecting Samsung Mobile Devices that allows attackers to write arbitrary files.

Understanding CVE-2021-25511

This section dives into the specifics of the CVE-2021-25511 vulnerability.

What is CVE-2021-25511?

CVE-2021-25511 is an improper validation vulnerability in FilterProvider prior to SMR Dec-2021 Release 1, enabling attackers to write arbitrary files through a path traversal vulnerability.

The Impact of CVE-2021-25511

The impact of this vulnerability is rated as MEDIUM severity, with a CVSS base score of 6.3. It requires high privileges, local attack vector, and user interaction.

Technical Details of CVE-2021-25511

In this section, we explore the technical details surrounding CVE-2021-25511.

Vulnerability Description

The vulnerability allows attackers to exploit an improper validation flaw in FilterProvider, potentially leading to unauthorized file writing.

Affected Systems and Versions

Samsung Mobile Devices with versions P(9.0), Q(10.0), R(11.0) prior to SMR Dec-2021 Release 1 are impacted by this vulnerability.

Exploitation Mechanism

Attackers can leverage the path traversal vulnerability in FilterProvider to write arbitrary files, posing a risk to the integrity of affected systems.

Mitigation and Prevention

This section outlines the mitigation strategies and best practices to prevent exploitation of CVE-2021-25511.

Immediate Steps to Take

It is advised to apply security patches released by Samsung Mobile to address this vulnerability promptly.

Long-Term Security Practices

Implementing robust input validation mechanisms and regular security updates can fortify systems against similar vulnerabilities.

Patching and Updates

Stay informed about security updates from Samsung Mobile and apply patches regularly to mitigate the risk of exploitation.