CVE-2021-25363 : Security Advisory and Response

An improper access control in ActivityManagerService prior to SMR APR-2021 Release 1 allows untrusted applications to access running processes and delete some local files.

Understanding CVE-2021-25363

This CVE affects Samsung Mobile Devices and is related to an improper access control vulnerability.

What is CVE-2021-25363?

The vulnerability in ActivityManagerService allows untrusted apps to access running processes and delete local files on affected Samsung Mobile Devices.

The Impact of CVE-2021-25363

With a CVSS base score of 6.8, this medium-severity vulnerability could result in high availability impact but no confidentiality impact.

Technical Details of CVE-2021-25363

This section covers the specific technical details of the CVE.

Vulnerability Description

The vulnerability is categorized as an improper access control issue in ActivityManagerService, impacting Samsung Mobile Devices.

Affected Systems and Versions

Samsung Mobile Devices with versions O(8.x), P(9.0), Q(10.0), R(11.0) prior to SMR APR-2021 Release 1 are affected by this vulnerability.

Exploitation Mechanism

Untrusted applications can exploit this vulnerability to access running processes and delete local files on the affected devices.

Mitigation and Prevention

Learn how to mitigate and prevent the risks associated with CVE-2021-25363.

Immediate Steps to Take

Users are advised to update their Samsung Mobile Devices to versions beyond SMR APR-2021 Release 1 to prevent exploitation of this vulnerability.

Long-Term Security Practices

Practicing good security hygiene, such as avoiding untrusted apps and staying informed about security updates, can help mitigate similar vulnerabilities in the future.

Patching and Updates

Regularly check for and apply security updates provided by Samsung Mobile to ensure that your device is protected against known vulnerabilities.