CVE-2020-2041 PAN-OS: Management web interface denial-of-service (DoS)
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.
Product Status
| Versions | Affected | Unaffected |
|---|---|---|
| PAN-OS 10.0 | None | 10.0.* |
| PAN-OS 9.1 | None | 9.1.* |
| PAN-OS 9.0 | None | 9.0.* |
| PAN-OS 8.1 | < 8.1.16 | >= 8.1.16 |
| PAN-OS 8.0 | 8.0.* |
Severity: HIGH
CVSSv3.1 Base Score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Exploitation Status
Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.
Weakness Type
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.
Workarounds and Mitigations
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.