CVE-2020-2034 : Exploit Details and Defense Strategies

An OS Command Injection vulnerability in the PAN-OS GlobalProtect portal allows attackers to execute arbitrary OS commands with root privileges.

Understanding CVE-2020-2034

This CVE involves a critical vulnerability in the GlobalProtect portal of PAN-OS, impacting various versions.

What is CVE-2020-2034?

An OS Command Injection vulnerability in the PAN-OS GlobalProtect portal
Allows unauthenticated network-based attackers to execute arbitrary OS commands with root privileges
Requires some firewall knowledge to exploit
Cannot be exploited if GlobalProtect portal feature is disabled

The Impact of CVE-2020-2034

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-2020-2034

This section provides detailed technical information about the vulnerability.

Vulnerability Description

OS Command Injection vulnerability in GlobalProtect portal
Allows execution of arbitrary OS commands with root privileges

Affected Systems and Versions

PAN-OS 9.1 versions earlier than 9.1.3
PAN-OS 8.1 versions earlier than 8.1.15
PAN-OS 9.0 versions earlier than 9.0.9
All versions of PAN-OS 8.0 and PAN-OS 7.1

Exploitation Mechanism

Attackers exploit the vulnerability through the GlobalProtect portal
Requires network access and knowledge of the firewall

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2020-2034.

Immediate Steps to Take

Disable GlobalProtect portal if not required
Apply patches provided by Palo Alto Networks

Long-Term Security Practices

Regularly update PAN-OS to the latest version
Implement network segmentation and access controls

Patching and Updates

Vulnerability fixed in PAN-OS 8.1.15, 9.0.9, 9.1.3, and later versions
End-of-life for PAN-OS 7.1 and 8.0