CVE-2020-2041

PAN-OS: Management web interface denial-of-service (DoS)

Published Sep 9, 2020 CVSS 3.1 · 7.5 High EPSS 2.1% KEV · Not listed
Description
An insecure configuration of the appweb daemon of Palo Alto Networks PAN-OS 8.1 allows a remote unauthenticated user to send a specifically crafted request to the device that causes the appweb service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts all versions of PAN-OS 8.0, and PAN-OS 8.1 versions earlier than 8.1.16.

Remediation

Vendor Solution

This issue is fixed in PAN-OS 8.1.16 and all later PAN-OS versions. PAN-OS 7.1 and PAN-OS 8.0 are end-of-life and are no longer covered by our Product Security Assurance policies.


Vendor Workaround

This issue impacts the management web interface of PAN-OS. You can mitigate the impact of this issue by following best practices for securing the PAN-OS management web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2020-22067 An insecure configuration of the appweb daemon of Palo Alto Networks PAN-OS 8.1 allows a remote unauthenticated user to send a specifically crafted request to the device that causes the appweb service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts all versions of PAN-OS 8.0, and PAN-OS 8.1 versions earlier than 8.1.16.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
palo_alto
Published
Updated
Sep 16, 2024, 7:47 PM
Reserved
Dec 4, 2019, 12:00 AM
Status
Modified
Published
Sep 9, 2020, 5:15 PM
Modified
Jun 17, 2026, 3:11 AM