CVE-2021-40991 Explained : Impact and Mitigation

Aruba ClearPass Policy Manager is affected by a remote disclosure of sensitive information vulnerability.

Understanding CVE-2021-40991

A vulnerability in Aruba ClearPass Policy Manager allows for the remote disclosure of sensitive information.

What is CVE-2021-40991?

Aruba ClearPass Policy Manager versions 6.10.x prior to 6.10.2, 6.9.x prior to 6.9.7-HF1, and 6.8.x prior to 6.8.9-HF1 are susceptible to a remote disclosure of sensitive information.

The Impact of CVE-2021-40991

The vulnerability could lead to the exposure of sensitive information managed by the Aruba ClearPass Policy Manager.

Technical Details of CVE-2021-40991

The technical aspects of the vulnerability in Aruba ClearPass Policy Manager are as follows:

Vulnerability Description

Type: Remote disclosure of sensitive information

Affected Systems and Versions

Aruba ClearPass Policy Manager versions affected:
ClearPass Policy Manager 6.10.x prior to 6.10.2
ClearPass Policy Manager 6.9.x prior to 6.9.7-HF1
ClearPass Policy Manager 6.8.x prior to 6.8.9-HF1

Exploitation Mechanism

Attackers can exploit this vulnerability remotely to access sensitive data managed by the Aruba ClearPass Policy Manager.

Mitigation and Prevention

Steps to address and prevent the CVE-2021-40991 vulnerability include:

Immediate Steps to Take

Apply the patches released by Aruba to secure the affected versions.
Monitor network activity for any signs of unauthorized access.

Long-Term Security Practices

Regularly update and maintain security configurations for Aruba ClearPass Policy Manager.
Educate users on security best practices to prevent unauthorized data access.

Patching and Updates

Ensure all systems running Aruba ClearPass Policy Manager are updated with the latest patches from Aruba to mitigate the vulnerability.