CVE-2021-0953 : Security Advisory and Response

Android devices with versions Android-9, Android-10, Android-11, and Android-12 are affected by a vulnerability that allows unauthorized access to contacts and history bookmarks via an unsafe PendingIntent. This flaw could lead to the escalation of privileges locally.

Understanding CVE-2021-0953

This CVE (Common Vulnerabilities and Exposures) affects Android devices running specific versions, potentially enabling an attacker to gain unauthorized access to sensitive information.

What is CVE-2021-0953?

The vulnerability lies in the 'setOnClickActivityIntent' function of SearchWidgetProvider.java, providing a path for malicious actors to access contacts and history bookmarks without proper permissions. As a result, there is a risk of unauthorized privilege escalation.

The Impact of CVE-2021-0953

Exploitation of this CVE could allow attackers to elevate their privileges locally without requiring user interaction, potentially leading to further compromise of the system.

Technical Details of CVE-2021-0953

While examining this CVE, specific technical details come to light, shedding more light on the vulnerability.

Vulnerability Description

The flaw in 'setOnClickActivityIntent' allows unauthorized access to contacts and history bookmarks, posing a significant risk of privilege escalation.

Affected Systems and Versions

Android devices running Android-9, Android-10, Android-11, and Android-12 versions are vulnerable to exploitation through this security issue.

Exploitation Mechanism

By leveraging the unsafe PendingIntent in SearchWidgetProvider.java, bad actors might exploit the vulnerability to gain access to sensitive user data.

Mitigation and Prevention

To address CVE-2021-0953, certain mitigation strategies and preventative measures should be adopted.

Immediate Steps to Take

It is crucial to apply security updates and patches provided by Android to mitigate the risk posed by this vulnerability.

Long-Term Security Practices

Implementing robust security protocols and permissions management mechanisms can enhance the overall security posture of Android devices.

Patching and Updates

Regularly updating Android devices with the latest security patches and versions is essential to prevent exploitation of known vulnerabilities.