CVE-2022-20395 : What You Need to Know

This article provides detailed information about CVE-2022-20395, a vulnerability affecting Android systems that could lead to local escalation of privilege.

Understanding CVE-2022-20395

This section covers what CVE-2022-20395 is and its potential impact.

What is CVE-2022-20395?

CVE-2022-20395 is a vulnerability present in the checkAccess function of MediaProvider.java in Android systems. It is a path traversal error that can result in a possible file deletion, leading to a local elevation of privilege without requiring additional execution privileges. Notably, user interaction is not necessary for exploitation.

The Impact of CVE-2022-20395

The impact of this vulnerability is the potential local escalation of privilege on affected Android systems.

Technical Details of CVE-2022-20395

In this section, we delve into the specific technical details of CVE-2022-20395.

Vulnerability Description

The vulnerability originates from a path traversal error in the checkAccess function of MediaProvider.java, allowing unauthorized file deletions.

Affected Systems and Versions

Android systems running versions Android-11, Android-12, Android-12L, and Android-13 are affected by CVE-2022-20395.

Exploitation Mechanism

Exploiting this vulnerability requires knowledge of the path traversal error in MediaProvider.java, enabling attackers to delete files without user interaction.

Mitigation and Prevention

This section outlines steps to mitigate and prevent exploitation of CVE-2022-20395.

Immediate Steps to Take

System administrators should apply security patches promptly to address this vulnerability.

Long-Term Security Practices

Implementing strong access controls and regularly updating Android systems can help prevent similar vulnerabilities in the future.

Patching and Updates

Users are advised to stay informed about security updates from Android and apply patches as soon as they are available.