CVE-2021-25384 : Exploit Details and Defense Strategies

A vulnerability in Samsung Mobile Devices prior to SMR MAY-2021 Release 1 allows remote attackers to execute arbitrary code on the mediaextractor process, posing a critical threat.

Understanding CVE-2021-25384

This section will delve into the key details of CVE-2021-25384.

What is CVE-2021-25384?

CVE-2021-25384 is an improper input validation vulnerability in the libsdffextractor library of Samsung Mobile Devices before SMR MAY-2021 Release 1. It enables attackers to execute arbitrary code on the mediaextractor process.

The Impact of CVE-2021-25384

The vulnerability has a CVSS base score of 9.0, indicating a critical severity level. It poses a high risk to confidentiality, integrity, and availability, with no user interaction required for exploitation.

Technical Details of CVE-2021-25384

Let's explore the technical aspects related to CVE-2021-25384.

Vulnerability Description

The vulnerability involves an improper input validation in sdfffd_parse_chunk_PROP() with Sample Rate Chunk in libsdffextractor library before SMR MAY-2021 Release 1.

Affected Systems and Versions

Samsung Mobile Devices with versions O(8.1), P(9.x), Q(10.0), R(11.0) are impacted before the SMR MAY-2021 Release 1.

Exploitation Mechanism

The vulnerability can be exploited remotely with a network attack vector and high attack complexity.

Mitigation and Prevention

This section covers the essential steps to mitigate and prevent CVE-2021-25384.

Immediate Steps to Take

Users are advised to update their Samsung Mobile Devices to the latest SMR release post MAY-2021 to eliminate the vulnerability.

Long-Term Security Practices

Implementing security best practices such as regular updates, network segmentation, and access control can enhance the overall security posture.

Patching and Updates

Regularly check for security updates from Samsung Mobile and apply patches promptly to safeguard against known vulnerabilities.