CVE-2021-39392 : Vulnerability Insights and Analysis

MyLittleBackup up to version 1.7 is vulnerable to remote code execution due to a hardcoded machineKey in web.config, allowing attackers to send serialized ASP code.

Understanding CVE-2021-39392

The management tool in MyLittleBackup up to version 1.7 has a security vulnerability that enables remote attackers to execute arbitrary code.

What is CVE-2021-39392?

The vulnerability in MyLittleBackup up to version 1.7 allows attackers to execute arbitrary code by exploiting the hardcoded machineKey in web.config, facilitating the sending of serialized ASP code.

The Impact of CVE-2021-39392

This vulnerability could lead to a severe security breach, enabling malicious actors to execute unauthorized code on the affected systems.

Technical Details of CVE-2021-39392

MyLittleBackup's vulnerability has the following technical aspects:

Vulnerability Description

The management tool in MyLittleBackup up to version 1.7 is susceptible to remote code execution due to the hardcoded machineKey in the web.config file.

Affected Systems and Versions

Product: Not Applicable
Vendor: Not Applicable
Versions affected: Up to and including version 1.7

Exploitation Mechanism

The vulnerability can be exploited by using the hardcoded machineKey in web.config to send serialized ASP code.

Mitigation and Prevention

To address CVE-2021-39392, consider the following steps:

Immediate Steps to Take

Update MyLittleBackup to the latest version.
Implement network security measures like firewalls.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update software and patches.
Conduct security audits and vulnerability assessments.
Train employees on cybersecurity best practices.

Patching and Updates

Ensure that you apply all security patches and updates released by MyLittleBackup to mitigate the CVE-2021-39392 vulnerability.