CVE-2020-1987 : Vulnerability Insights and Analysis

This CVE-2020-1987 article provides insights into an information exposure vulnerability in Palo Alto Networks Global Protect Agent.

Understanding CVE-2020-1987

An information exposure vulnerability enables a local authenticated user to access VPN cookie data in Palo Alto Networks Global Protect Agent.

What is CVE-2020-1987?

The CVE-2020-1987 vulnerability in the logging component of Global Protect Agent allows reading VPN cookie information by authenticated local users.

The Impact of CVE-2020-1987

CVSS Base Score: 3.9 (Low)
Vector String: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Users with low privileges can exploit this issue, requiring user interaction.

Technical Details of CVE-2020-1987

The technical specifics and implications of CVE-2020-1987.

Vulnerability Description

The vulnerability allows local users to access VPN cookie data by setting the logging level to "Dump".

Affected Systems and Versions

Affected Versions: Global Protect Agent 5.0 (prior to 5.0.9), Global Protect Agent 5.1 (prior to 5.1.1)

Exploitation Mechanism

The issue arises when a local authenticated user tweaks the logging level to gain access to VPN cookie details.

Mitigation and Prevention

Understanding the necessary steps to prevent and mitigate the CVE-2020-1987 vulnerability.

Immediate Steps to Take

Ensure the Global Protect Agent is updated to version 5.0.9 or 5.1.1.
Avoid setting the troubleshooting logging level to "Dump".

Long-Term Security Practices

Regularly review and adjust logging levels to minimize sensitive data exposure risks.
Implement strict access controls to limit user privileges on affected systems.

Patching and Updates

Install the latest versions of Global Protect Agent (5.0.9, 5.1.1, or newer) to address the vulnerability.