CVE-2021-3032 : Vulnerability Insights and Analysis

A detailed article outlining the information exposure through log file vulnerability in Palo Alto Networks PAN-OS software where configuration secrets may be logged in system logs.

Understanding CVE-2021-3032

This CVE highlights a security issue in PAN-OS software that could expose sensitive configuration secrets in system logs.

What is CVE-2021-3032?

An information exposure vulnerability exists where secrets of log forwarding server profiles can be logged to the system log, potentially including usernames, passwords, and private keys.

The Impact of CVE-2021-3032

The issue affects PAN-OS versions earlier than 8.1.18, 9.0.12, 9.1.4, and 10.0.1, allowing unauthorized access to sensitive data.

Technical Details of CVE-2021-3032

This section provides specific technical details about the vulnerability.

Vulnerability Description

The vulnerability involves configuration secrets for log forwarding server profiles being logged to the system log, potentially exposing sensitive information.

Affected Systems and Versions

PAN-OS 8.1.18 and earlier, PAN-OS 9.0.12 and earlier, PAN-OS 9.1.4 and earlier, PAN-OS 10.0.1 and earlier are impacted.

Exploitation Mechanism

Although Palo Alto Networks is not aware of any malicious exploitation, the exposure could lead to unauthorized access to critical information.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2021-3032.

Immediate Steps to Take

To address the issue, clear the configuration file (/var/log/pan/logrcvr.log) by running the CLI command provided in the solution section.

Long-Term Security Practices

Adopt best practices for securing the PAN-OS management interface to minimize the risk of data exposure.

Patching and Updates

Ensure you update PAN-OS to versions 8.1.18, 9.0.12, 9.1.4, 10.0.1, or later to mitigate the vulnerability effectively.