CVE-2023-39400 : What You Need to Know

A parameter verification vulnerability in the installd module has been identified. This CVE affects Huawei's HarmonyOS and EMUI, potentially allowing unauthorized read and write access to sandbox files.

Understanding CVE-2023-39400

This section will provide insights into the nature and impact of CVE-2023-39400.

What is CVE-2023-39400?

CVE-2023-39400 highlights a parameter verification vulnerability in the installd module, leading to unauthorized access to sandbox files.

The Impact of CVE-2023-39400

The successful exploitation of this vulnerability may result in unauthorized reading and writing of sandbox files, compromising system security.

Technical Details of CVE-2023-39400

Explore the technical specifics of CVE-2023-39400 to understand its implications better.

Vulnerability Description

The vulnerability involves improper limitation of a pathname to a restricted directory, known as 'Path Traversal' (CWE-22), in the installd module.

Affected Systems and Versions

Huawei's HarmonyOS versions 2.0.0, 2.0.1, 2.1.0, 3.0.0, and 3.1.0, along with EMUI versions 11.0.1, 12.0.0, 12.0.1, and 13.0.0, are affected by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited to read and write sandbox files without proper authorization, posing a significant security risk.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2023-39400 and prevent potential exploits.

Immediate Steps to Take

Users are advised to apply security updates promptly to address the vulnerability and prevent unauthorized access to sandbox files.

Long-Term Security Practices

Implementing secure coding practices, restricting file system access, and continuous monitoring can enhance overall system security.

Patching and Updates

Regularly check for and install security patches released by Huawei for HarmonyOS and EMUI to mitigate the risk of exploitation.