CVE-2019-17390 : What You Need to Know

A vulnerability has been found in Pronestor Planner, specifically in its Outlook add-in version prior to 8.1.77. This vulnerability involves mishandling of access control in the Health Monitor service, potentially leading to local privilege escalation.

Understanding CVE-2019-17390

This CVE identifies a security flaw in Pronestor Planner's Outlook add-in that could allow attackers to escalate privileges locally.

What is CVE-2019-17390?

The vulnerability in Pronestor Planner's Outlook add-in version prior to 8.1.77 allows for mishandling of access control in the Health Monitor service, potentially leading to local privilege escalation.

The Impact of CVE-2019-17390

CVSS Score: 8.2 (High Severity)
Attack Vector: Local
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High
Privileges Required: Low
User Interaction: Required
Scope: Changed
This vulnerability could be exploited by an attacker with low privileges, requiring user interaction, and could result in significant impact on confidentiality, integrity, and availability.

Technical Details of CVE-2019-17390

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability involves mishandling of access control in the Health Monitor service, specifically in the PronestorHealthMonitor.exe file, leading to local privilege escalation.

Affected Systems and Versions

Affected Product: Pronestor Planner
Affected Version: Prior to 8.1.77

Exploitation Mechanism

The vulnerability can be exploited locally by manipulating access control in the Health Monitor service, particularly in the PronestorHealthMonitor.exe file.

Mitigation and Prevention

Protect your systems from potential exploitation by following these mitigation strategies.

Immediate Steps to Take

Update Pronestor Planner to version 8.1.77 or later to patch the vulnerability.
Monitor system logs for any suspicious activities related to access control.

Long-Term Security Practices

Implement the principle of least privilege to restrict unnecessary access rights.
Conduct regular security audits and penetration testing to identify and address vulnerabilities proactively.

Patching and Updates

Regularly apply security patches and updates to all software components to ensure the latest security fixes are in place.