CVE-2019-18370 : What You Need to Know

A vulnerability has been identified in Xiaomi Mi WiFi R3G devices running versions older than 2.28.23-stable, potentially allowing attackers to manipulate files and execute commands.

Understanding CVE-2019-18370

This CVE involves a security issue on Xiaomi Mi WiFi R3G devices that could lead to unauthorized file manipulation and command execution.

What is CVE-2019-18370?

The vulnerability in Xiaomi Mi WiFi R3G devices allows attackers to control file contents and execute commands due to insecure file handling and command injection.

The Impact of CVE-2019-18370

The vulnerability could be exploited by malicious actors to compromise the integrity and security of affected devices, potentially leading to unauthorized access and data breaches.

Technical Details of CVE-2019-18370

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The issue arises from the use of the tar zxf command during the file upload process, enabling attackers to manipulate files in the decompressed directory. Additionally, a command injection vulnerability exists in the application's sh script, specifically in the api/xqnetdetect/netspeed endpoint.

Affected Systems and Versions

Xiaomi Mi WiFi R3G devices running versions older than 2.28.23-stable

Exploitation Mechanism

Attackers can exploit the vulnerability by uploading a malicious file in tar.gz format, allowing them to control the contents of the decompressed files.
The command injection vulnerability can be triggered by manipulating the URL list retrieved by the application's sh script.

Mitigation and Prevention

Protecting systems from CVE-2019-18370 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected devices to version 2.28.23-stable or newer to mitigate the vulnerability.
Monitor network traffic for any suspicious activities that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities and enhance security.
Implement network segmentation and access controls to limit the impact of potential security breaches.

Patching and Updates

Apply security patches provided by Xiaomi promptly to address the vulnerability and enhance device security.