CVE-2021-38431 Explained : Impact and Mitigation

An authenticated user using Advantech WebAccess SCADA in versions 9.0.3 and prior can use API functions to disclose project names and paths from other users.

Understanding CVE-2021-38431

This CVE affects Advantech's WebAccess SCADA solution, allowing authenticated users to access sensitive information.

What is CVE-2021-38431?

CVE-2021-38431 is a vulnerability in Advantech WebAccess SCADA versions 9.0.3 and earlier, enabling authenticated users to reveal project details of other users through API functions.

The Impact of CVE-2021-38431

The vulnerability has a CVSS base score of 4.3, with medium severity. It poses a low confidentiality impact and requires low privileges to exploit. The attack complexity is low, affecting the network.

Technical Details of CVE-2021-38431

This section provides specific technical details of the CVE.

Vulnerability Description

The vulnerability allows authenticated users to disclose project names and paths of other users via API functions in Advantech WebAccess SCADA.

Affected Systems and Versions

Advantech WebAccess SCADA versions up to and including 9.0.3 are affected by this vulnerability.

Exploitation Mechanism

Authenticated users can exploit this vulnerability through API functions in the affected versions of WebAccess SCADA.

Mitigation and Prevention

To address CVE-2021-38431, users are advised to take the following mitigation steps.

Immediate Steps to Take

Users should upgrade to Advantech WebAccess SCADA version 9.1.1 or later to mitigate the vulnerability.

Long-Term Security Practices

Implement robust access controls and authorization mechanisms to prevent unauthorized access to sensitive project information.

Patching and Updates

Regularly apply security patches and updates provided by Advantech to ensure the system's security.