CVE-2021-40903 : Security Advisory and Response

This CVE-2021-40903 article provides details about a vulnerability in Antminer Monitor 0.50.0 due to a backdoor or misconfiguration in a settings file in the flask server. The settings file contains a static predefined secret string.

Understanding CVE-2021-40903

CVE-2021-40903 is a vulnerability in Antminer Monitor 0.50.0 that allows unauthorized access due to a static secret string in the settings file.

What is CVE-2021-40903?

The vulnerability stems from a backdoor or misconfiguration within the flask server settings file of Antminer Monitor 0.50.0. The static secret string in the settings file makes it susceptible to unauthorized access.

The Impact of CVE-2021-40903

This vulnerability could lead to unauthorized parties gaining access to the Antminer Monitor 0.50.0, potentially compromising sensitive information stored within the system.

Technical Details of CVE-2021-40903

Antminer Monitor 0.50.0 is affected by the following technical details:

Vulnerability Description

The vulnerability arises from a static secret string within the flask server settings file, allowing unauthorized access to the system.

Affected Systems and Versions

Affected Product: Antminer Monitor 0.50.0
Vendor: N/A
Affected Version: N/A

Exploitation Mechanism

The vulnerability can be exploited by leveraging the static secret string in the settings file, which can be used to gain unauthorized access to the system.

Mitigation and Prevention

To address CVE-2021-40903, consider the following mitigation and prevention strategies:

Immediate Steps to Take

Remove or update the static secret string in the flask server settings file.
Monitor system logs for any unauthorized access attempts.

Long-Term Security Practices

Regularly review and update access control policies.
Conduct security audits to identify and address vulnerabilities.

Patching and Updates

Stay informed about security patches and updates released by the vendor to address the vulnerability.