CVE-2021-0702 : Vulnerability Insights and Analysis

This CVE-2021-0702 article provides insights into a security vulnerability found in Android-11 that could lead to local information disclosure.

Understanding CVE-2021-0702

This section explains the impact, technical details, and mitigation strategies related to CVE-2021-0702.

What is CVE-2021-0702?

The CVE-2021-0702 vulnerability exists in RevertActiveSessions of apexd.cpp in Android-11. It allows sharing the wrong file inadvertently, potentially leading to local information disclosure without requiring additional execution privileges.

The Impact of CVE-2021-0702

The impact of this vulnerability is the potential disclosure of local information without the need for extra execution privileges. Exploitation of this issue requires user interaction.

Technical Details of CVE-2021-0702

This section delves into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in RevertActiveSessions of apexd.cpp enables the sharing of incorrect files due to an unintentional MediaStore downgrade, facilitating local information disclosure.

Affected Systems and Versions

This vulnerability affects Android-11.

Exploitation Mechanism

Exploiting CVE-2021-0702 requires user interaction due to the incorrect file sharing capability in apexd.cpp.

Mitigation and Prevention

This section outlines immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Users are advised to remain cautious with file sharing and interactions, especially in Android-11 to mitigate the risk of local information disclosure.

Long-Term Security Practices

Employing robust data protection practices, ensuring secure file sharing, and maintaining user awareness can bolster long-term security.

Patching and Updates

Regularly updating systems, software, and following security bulletins can help safeguard against known vulnerabilities like CVE-2021-0702.