CVE-2020-2001 Explained : Impact and Mitigation

An external control of path and data vulnerability in the Palo Alto Networks PAN-OS Panorama XSLT processing logic allows an unauthenticated user to write attacker-supplied files on the system and elevate privileges.

Understanding CVE-2020-2001

This CVE involves a vulnerability in Palo Alto Networks PAN-OS Panorama that can lead to privilege escalation.

What is CVE-2020-2001?

This vulnerability enables an unauthenticated user with network access to the PAN-OS management interface to write files on the system and escalate privileges.

The Impact of CVE-2020-2001

CVSS Base Score: 8.1 (High)
Attack Vector: Network
Attack Complexity: High
Privileges Required: None
Confidentiality, Integrity, and Availability Impact: High

Technical Details of CVE-2020-2001

This section provides more in-depth technical information about the vulnerability.

Vulnerability Description

The vulnerability allows unauthorized users to write files on the system and gain elevated privileges through the PAN-OS Panorama XSLT processing logic.

Affected Systems and Versions

Affected Versions: PAN-OS 7.1., 8.0., 8.1 versions less than 8.1.12, and 9.0 versions less than 9.0.6 on Panorama.

Exploitation Mechanism

The vulnerability can be exploited by an unauthenticated user with network access to the PAN-OS management interface to write attacker-supplied files and escalate privileges.

Mitigation and Prevention

To address CVE-2020-2001, follow these mitigation and prevention strategies:

Immediate Steps to Take

Upgrade to PAN-OS 8.1.12, PAN-OS 9.0.6, or later versions.
Monitor for any unauthorized file writes or privilege escalations.

Long-Term Security Practices

Implement strict access controls and authentication mechanisms.
Regularly monitor and audit system logs for suspicious activities.

Patching and Updates

Ensure timely installation of security patches and updates to prevent exploitation of known vulnerabilities.