CVE-2021-25335 : What You Need to Know

A vulnerability labeled as CVE-2021-25335 has been identified in Samsung Mobile Devices that could allow unauthorized access to hidden notification contents over the lock screen. Here's what you need to know about this security issue.

Understanding CVE-2021-25335

This section delves into the nature of the CVE-2021-25335 vulnerability and its potential impact on affected systems.

What is CVE-2021-25335?

The CVE-2021-25335 vulnerability involves an improper lockscreen status check in the cocktailbar service of Samsung mobile devices prior to SMR Mar-2021 Release 1. This flaw allows unauthenticated users to view hidden notification contents even when the device is in lock screen mode.

The Impact of CVE-2021-25335

The impact of this vulnerability is considered low, with a CVSS base score of 2.5. However, it poses a risk as it enables unauthorized users to bypass lock screen security measures and access sensitive notification data under specific conditions.

Technical Details of CVE-2021-25335

This section provides more in-depth technical insights into the vulnerability, including how it can be exploited and the systems affected.

Vulnerability Description

The vulnerability arises from an improper lockscreen status check within the cocktailbar service of Samsung mobile devices, particularly those running versions earlier than SMR Mar-2021 Release 1. This oversight permits unauthenticated users to access hidden notification contents while the device is locked.

Affected Systems and Versions

Samsung Mobile Devices running the 'Selected Q(10.0)' version before the SMR Mar-2021 Release 1 are affected by this vulnerability. Users of these devices are at risk of unauthorized access to notification data.

Exploitation Mechanism

Exploiting this vulnerability requires local access to the device and a specific user interaction, making it crucial for users to be cautious about who has physical access to their devices.

Mitigation and Prevention

Discover the steps to mitigate the risks associated with CVE-2021-25335 and fortify the security of your Samsung Mobile Device.

Immediate Steps to Take

Users are advised to update their devices to the SMR Mar-2021 Release 1 or newer versions to address this vulnerability. Additionally, it is recommended to refrain from leaving the device unattended in public settings.

Long-Term Security Practices

Incorporate secure lock screen measures such as PINs, passwords, or biometric authentication to enhance the overall security of the device and limit unauthorized access.

Patching and Updates

Frequently check for and apply security updates provided by Samsung Mobile to ensure that your device is protected against known vulnerabilities like CVE-2021-25335.