CVE-2021-25361 Explained : Impact and Mitigation

An improper access control vulnerability in stickerCenter prior to SMR APR-2021 Release 1 allows local attackers to read or write arbitrary files of system process via untrusted applications.

Understanding CVE-2021-25361

This CVE affects Samsung Mobile Devices with versions P(9.0) and Q(10.0) before SMR APR-2021 Release 1.

What is CVE-2021-25361?

CVE-2021-25361 is an improper access control vulnerability in stickerCenter that can be exploited by local attackers to access sensitive files through untrusted apps on Samsung Mobile Devices.

The Impact of CVE-2021-25361

The vulnerability has a CVSS base score of 7.9, indicating a high severity issue. It can lead to unauthorized access to system files and compromise the integrity of affected devices.

Technical Details of CVE-2021-25361

This vulnerability is categorized under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').

Vulnerability Description

The vulnerability allows local attackers to manipulate file access permissions through untrusted applications, potentially leading to unauthorized file read or write operations.

Affected Systems and Versions

Samsung Mobile Devices with versions P(9.0) and Q(10.0) before SMR APR-2021 Release 1 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability by using untrusted applications to gain access to system files that should otherwise be restricted.

Mitigation and Prevention

To mitigate the risk associated with CVE-2021-25361, immediate actions and long-term security practices are recommended.

Immediate Steps to Take

Users should update their Samsung Mobile Devices to SMR APR-2021 Release 1 or later to address this vulnerability. Avoid installing apps from untrusted sources to minimize the risk.

Long-Term Security Practices

Regularly update the device with the latest security patches and avoid granting unnecessary permissions to applications.

Patching and Updates

Samsung Mobile provides security updates through their official channels. Stay informed about security updates and apply them promptly to safeguard against known vulnerabilities.