CVE-2019-17437 : Vulnerability Insights and Analysis

A security vulnerability in Palo Alto Networks PAN-OS allows low privileged custom-role users to escalate privileges, potentially becoming superusers. The issue affects specific versions of PAN-OS.

Understanding CVE-2019-17437

This CVE involves an authentication check flaw in PAN-OS that could lead to privilege escalation for non-superuser custom-role users.

What is CVE-2019-17437?

The vulnerability in PAN-OS could enable a user with a low privileged custom role to gain higher privileges, potentially becoming a superuser.

The Impact of CVE-2019-17437

CVSS Base Score: 7.8 (High Severity)
Attack Vector: Local
Privileges Required: Low
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: High

Technical Details of CVE-2019-17437

This section provides specific technical details about the vulnerability.

Vulnerability Description

An improper authentication check in PAN-OS allows low privileged non-superuser custom role users to elevate their privileges, potentially becoming superusers.

Affected Systems and Versions

PAN-OS 7.1 versions prior to 7.1.25
PAN-OS 8.0 versions prior to 8.0.20
PAN-OS 8.1 versions prior to 8.1.11
PAN-OS 9.0 versions prior to 9.0.5

Exploitation Mechanism

The vulnerability can be exploited by a user with a low privileged custom role to gain unauthorized access and escalate their privileges.

Mitigation and Prevention

Steps to address and prevent the CVE issue.

Immediate Steps to Take

Remove untrusted custom-role users or limit their access
Restrict device access to trusted users

Long-Term Security Practices

Regularly review and update user roles and permissions
Implement least privilege access controls
Monitor and audit user activities

Patching and Updates

The issue has been resolved in PAN-OS versions 7.1.25, 8.0.20, 8.1.11, 9.0.5, and later versions.