CVE-2021-25353 : Security Advisory and Response

A vulnerability in Galaxy Themes before version 5.2.00.1215 could allow local attackers to access private file directories without permission.

Understanding CVE-2021-25353

This CVE relates to the misuse of PendingIntent in Galaxy Themes, enabling unauthorized access to private files.

What is CVE-2021-25353?

The vulnerability in Galaxy Themes prior to version 5.2.00.1215 permits local attackers to read/write private file directories of the application without proper permission by exploiting the PendingIntent.

The Impact of CVE-2021-25353

With a CVSS base score of 5.5, this medium-severity vulnerability poses a threat to confidentiality, allowing attackers to access sensitive data.

Technical Details of CVE-2021-25353

The vulnerability description, affected systems and versions, and the exploitation mechanism are outlined below.

Vulnerability Description

Using an empty PendingIntent in Galaxy Themes allows local attackers to read/write private file directories without permission by hijacking the PendingIntent.

Affected Systems and Versions

Product: Galaxy Themes
Vendor: Samsung Mobile
Versions Affected: Less than 5.2.00.1215
Type: Custom

Exploitation Mechanism

Attack complexity is LOW, attack vector is LOCAL, and privileges required are LOW. User interaction is not needed for exploitation.

Mitigation and Prevention

To address CVE-2021-25353, immediate steps need to be taken along with long-term security practices.

Immediate Steps to Take

Immediately update Galaxy Themes to version 5.2.00.1215 or higher to prevent unauthorized access to private file directories.

Long-Term Security Practices

Regularly monitor security advisories and update software promptly to mitigate potential vulnerabilities.

Patching and Updates

Stay informed about security updates from Samsung Mobile and apply patches as soon as they are available.