CVE-2021-25450 : What You Need to Know

A path traversal vulnerability in FactoryAirCommnadManger prior to SMR Sep-2021 Release 1 in Samsung Mobile Devices allows attackers to write files as system uid via a remote socket.

Understanding CVE-2021-25450

This CVE-2021-25450 affects Samsung Mobile Devices with versions O(8.1), P(9.0), Q(10.0), R(11.0) before SMR Sep-2021 Release 1.

What is CVE-2021-25450?

The vulnerability in FactoryAirCommnadManger allows malicious actors to write files as system uid through a remote socket.

The Impact of CVE-2021-25450

With a CVSS base score of 4.5 (Medium severity), the integrity impact is high while confidentiality impact is none. This vulnerability requires user interaction and low privileges.

Technical Details of CVE-2021-25450

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability is due to improper input validation in FactoryAirCommnadManger, allowing unauthorized file writing.

Affected Systems and Versions

Samsung Mobile Devices versions O(8.1), P(9.0), Q(10.0), R(11.0) before SMR Sep-2021 Release 1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability via a remote socket, enabling them to write files as system uid.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-25450, follow the steps below.

Immediate Steps to Take

Apply the latest security update SMR Sep-2021 Release 1.
Monitor for any unauthorized file modifications.

Long-Term Security Practices

Regularly update the device with the latest security patches.
Implement network segmentation to limit exposure.

Patching and Updates

Stay informed about security updates from Samsung Mobile and apply patches promptly to ensure system security.