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CVE-2020-1995 : What You Need to Know

Learn about CVE-2020-1995, a vulnerability in Palo Alto Networks PAN-OS allowing an authenticated admin to cause a rasmgr daemon crash, leading to denial of service. Mitigation steps included.

A NULL pointer dereference vulnerability in Palo Alto Networks PAN-OS allows an authenticated administrator to send a request that causes the rasmgr daemon to crash, leading to denial of service. This vulnerability affects PAN-OS 9.1 versions earlier than 9.1.2.

Understanding CVE-2020-1995

This CVE involves a vulnerability in the management server rasmgr that could be exploited by an authenticated administrator.

What is CVE-2020-1995?

CVE-2020-1995 is a NULL pointer dereference vulnerability in Palo Alto Networks PAN-OS that can be triggered by a specific request, causing the rasmgr daemon to crash.

The Impact of CVE-2020-1995

The vulnerability, if exploited, results in a denial of service (DoS) for all PAN-OS services by restarting the device and putting it into maintenance mode.

Technical Details of CVE-2020-1995

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability allows an authenticated administrator to crash the rasmgr daemon by sending a specific request.

Affected Systems and Versions

        Affected Product: PAN-OS
        Vendor: Palo Alto Networks
        Versions Affected: PAN-OS 9.1 versions earlier than 9.1.2

Exploitation Mechanism

The exploitation involves an authenticated administrator sending a request that triggers the vulnerability, leading to a crash of the rasmgr daemon.

Mitigation and Prevention

Understanding the steps to mitigate and prevent the exploitation of CVE-2020-1995.

Immediate Steps to Take

        Upgrade PAN-OS to version 9.1.2 or later to address the vulnerability.
        Monitor system logs for any suspicious activities.
        Implement least privilege access to limit potential attacks.

Long-Term Security Practices

        Regularly update and patch PAN-OS to ensure the latest security fixes are applied.
        Conduct security audits and assessments to identify and remediate vulnerabilities.

Patching and Updates

        Palo Alto Networks has fixed this issue in PAN-OS 9.1.2 and all subsequent versions.

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