CVE-2021-0552 : Vulnerability Insights and Analysis

This CVE-2021-0552 article provides an overview of a vulnerability found in the Android platform that could result in information disclosure. It explains the impact, technical details, and mitigation strategies associated with the CVE.

Understanding CVE-2021-0552

CVE-2021-0552 is a vulnerability in the Android platform, specifically in the MediaOutputSlice.java file. The flaw could allow an attacker to bypass permissions using an unsafe PendingIntent, potentially leading to local information disclosure.

What is CVE-2021-0552?

The vulnerability, identified as CVE-2021-0552, exists in the getEndItemSliceAction function of MediaOutputSlice.java within Android-11. It enables a potential permission bypass scenario, requiring user execution privileges without the need for user interaction.

The Impact of CVE-2021-0552

The impact of CVE-2021-0552 is the potential disclosure of sensitive local information due to the unsafe PendingIntent mechanism. Exploitation of this vulnerability could occur without the direct involvement of the user, posing a significant risk to user data privacy and security.

Technical Details of CVE-2021-0552

This section delves into the specific technical aspects of the CVE, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in getEndItemSliceAction of MediaOutputSlice.java allows for a possible permission bypass, making local information disclosure feasible. The flaw stems from the usage of an unsafe PendingIntent, which could be exploited to access sensitive data.

Affected Systems and Versions

The vulnerability impacts devices running Android-11, exposing them to the risk of information disclosure. Users of Android-11 devices are advised to take immediate action to mitigate the threat posed by CVE-2021-0552.

Exploitation Mechanism

Exploiting CVE-2021-0552 does not require user interaction, as the vulnerability can be leveraged by an attacker with user execution privileges. By utilizing an unsafe PendingIntent, threat actors may gain unauthorized access to local information on affected devices.

Mitigation and Prevention

This section focuses on the necessary steps and best practices to mitigate the risks associated with CVE-2021-0552, emphasizing immediate actions and long-term security measures.

Immediate Steps to Take

Users of Android-11 devices should prioritize updating their systems to the latest security patches provided by the vendor. Implementing security updates promptly is crucial to safeguarding devices against potential exploitation of CVE-2021-0552.

Long-Term Security Practices

In addition to applying immediate security patches, users are encouraged to follow robust security practices such as avoiding untrusted sources, utilizing strong passwords, and regularly monitoring for security updates.

Patching and Updates

Staying informed about security patches and updates released by the Android platform is essential for maintaining the security of devices. Regularly checking for and applying the latest patches can help protect devices from known vulnerabilities like CVE-2021-0552.