CVE-2021-40989 : Exploit Details and Defense Strategies

Aruba ClearPass Policy Manager is affected by a local escalation of privilege vulnerability that impacts versions 6.10.x, 6.9.x, and 6.8.x. Aruba has released patches to address this security issue.

Understanding CVE-2021-40989

This CVE involves a local escalation of privilege vulnerability in Aruba ClearPass Policy Manager.

What is CVE-2021-40989?

A local escalation of privilege vulnerability affecting Aruba ClearPass Policy Manager versions 6.10.x, 6.9.x, and 6.8.x.

The Impact of CVE-2021-40989

The vulnerability allows a local attacker to escalate their privileges on the system.

Technical Details of CVE-2021-40989

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability involves a local escalation of privilege in Aruba ClearPass Policy Manager.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by a local attacker to elevate their privileges on the system.

Mitigation and Prevention

Steps to address and prevent the exploitation of CVE-2021-40989.

Immediate Steps to Take

Apply the patches provided by Aruba to mitigate the vulnerability.
Monitor system logs for any suspicious activities.

Long-Term Security Practices

Regularly update and patch software to prevent security vulnerabilities.
Implement the principle of least privilege to restrict user permissions.

Patching and Updates

Ensure all systems running Aruba ClearPass Policy Manager are updated to the patched versions.