CVE-2021-25336 Explained : Impact and Mitigation

Samsung Mobile Devices prior to SMR Mar-2021 Release 1 are impacted by an improper access control vulnerability in NotificationManagerService. This flaw could allow untrusted applications to gain notification access through a crafted malicious intent.

Understanding CVE-2021-25336

This section will provide insights into the nature and impact of the vulnerability.

What is CVE-2021-25336?

CVE-2021-25336 refers to the improper access control issue in NotificationManagerService of Samsung Mobile Devices before SMR Mar-2021 Release 1, enabling unauthorized apps to acquire notification access.

The Impact of CVE-2021-25336

The vulnerability could be exploited by malicious apps to bypass access controls and potentially access sensitive notifications on affected devices.

Technical Details of CVE-2021-25336

Let's delve into the specific technical aspects of this security issue.

Vulnerability Description

The vulnerability arises from improper access control mechanisms in NotificationManagerService, creating a loophole for unauthorized apps.

Affected Systems and Versions

Samsung Mobile Devices running versions P(9.0) and Q(10.0) before the SMR Mar-2021 Release 1 are susceptible to this vulnerability.

Exploitation Mechanism

Malicious applications can exploit this flaw by sending a carefully crafted intent to gain notification access illegally.

Mitigation and Prevention

Discover the steps to mitigate and secure systems against CVE-2021-25336.

Immediate Steps to Take

Users should exercise caution while granting notification access to applications and be wary of potential malicious intents.

Long-Term Security Practices

Implementing strict permission controls and keeping devices updated can help prevent unauthorized access to notifications.

Patching and Updates

It is crucial for Samsung Mobile users to install the SMR Mar-2021 Release 1 or newer to address this vulnerability and enhance device security.