CVE-2021-46856 Explained : Impact and Mitigation
Learn about CVE-2021-46856, a path traversal vulnerability in the multi-screen collaboration module of HarmonyOS and EMUI that can compromise data confidentiality. Find out about affected systems, exploitation methods, mitigation steps, and preventive measures.
A path traversal vulnerability in the multi-screen collaboration module of HarmonyOS and EMUI can lead to data confidentiality issues.
Understanding CVE-2021-46856
What is CVE-2021-46856?
The path traversal vulnerability in the multi-screen collaboration module can be exploited to compromise data confidentiality.
The Impact of CVE-2021-46856
Successful exploitation of this vulnerability may lead to unauthorized access to sensitive data and compromise user privacy.
Technical Details of CVE-2021-46856
Vulnerability Description
The path traversal vulnerability in the multi-screen collaboration module allows attackers to access files outside the intended directory, potentially leading to data leaks.
Affected Systems and Versions
- HarmonyOS 3.0.0 and 2.0
- EMUI 12.0.0 and 12.0.1
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating file paths to access sensitive data stored on the affected systems.
Mitigation and Prevention
Immediate Steps to Take
- Apply the patches provided by Huawei to fix the vulnerability.
- Regularly monitor system logs for any suspicious activities.
Long-Term Security Practices
- Implement access controls to restrict file system access.
- Conduct regular security assessments to identify and address vulnerabilities proactively.
Patching and Updates
Ensure that the systems running HarmonyOS and EMUI are regularly updated with the latest security patches released by Huawei.