CVE-2020-5764 : Exploit Details and Defense Strategies

MX Player Android App versions prior to v1.24.5 are vulnerable to a directory traversal vulnerability when using the MX Transfer feature in "Receive" mode, potentially leading to remote code execution.

Understanding CVE-2020-5764

MX Player Android App versions prior to v1.24.5 are susceptible to a critical security issue that allows attackers to manipulate file transfers and potentially execute malicious code on the victim's device.

What is CVE-2020-5764?

The vulnerability in MX Player Android App versions prior to v1.24.5 enables a directory traversal attack during file transfers via the MX Transfer feature. Attackers can exploit this flaw to save files outside the intended directory, leading to potential remote code execution.

The Impact of CVE-2020-5764

Exploiting this vulnerability can result in unauthorized access to sensitive data, manipulation of files, and in severe cases, remote code execution on the victim's device.

Technical Details of CVE-2020-5764

MX Player Android App's vulnerability to directory traversal attacks during file transfers poses significant risks to user data and device security.

Vulnerability Description

The flaw allows attackers to save files outside the designated directory by manipulating the file transfer process, potentially leading to unauthorized access and remote code execution.

Affected Systems and Versions

Product: MX Player Android App
Vendor: n/a
Vulnerable Versions: All versions prior to v1.24.5

Exploitation Mechanism

Attackers connect to the MX Transfer session as a "sender" and send a MessageType of "FILE_LIST" with directory traversal characters in the "name" field.
This action results in files being saved outside the intended directory, compromising the security of the file transfer process.

Mitigation and Prevention

Taking immediate steps to address and prevent the exploitation of CVE-2020-5764 is crucial for maintaining the security of affected systems.

Immediate Steps to Take

Update MX Player Android App to version v1.24.5 or newer to mitigate the vulnerability.
Avoid using the MX Transfer feature until the application is patched to prevent potential attacks.

Long-Term Security Practices

Regularly update applications and software to the latest versions to address security vulnerabilities promptly.
Educate users on safe file transfer practices and potential risks associated with unpatched software.

Patching and Updates

Stay informed about security advisories and patches released by MX Player to address vulnerabilities and enhance the application's security.