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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.1714
                Panorama proxy service authorization bypass
                                14 May 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Panorama proxy service
Publisher:         Palo Alto
Operating System:  Network Appliance
Impact/Access:     Unauthorised Access -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-2018  

Original Bulletin: 
   https://securityadvisories.paloaltonetworks.com/CVE-2020-2018

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Palo Alto Networks Security Advisories / CVE-2020-2018

CVE-2020-2018 PAN-OS: Panorama proxy service authorization bypass

047910
Severity 9 . CRITICAL
Attack Vector NETWORK
Attack Complexity HIGH
Privileges Required NONE
User Interaction NONE
Scope CHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
NVD JSON     
Published: 2020-05-13
Updated: 2020-05-13
Ref#: PAN-123661

Description

An authentication bypass vulnerability in Palo Alto Networks PAN-OS Panorama
proxy service allows an unauthenticated user with network access to Panorama
and the knowledge of the Firewall's serial number to register the PAN-OS
firewall to register the device. After the PAN-OS device is registered, the
user can further compromise the PAN-OS instances managed by Panorama.

This issue affects:

PAN-OS 7.1 versions earlier than 7.1.26;

All versions of PAN-OS 8.0;

PAN-OS 8.1 versions earlier than 8.1.12;

PAN-OS 9.0 versions earlier than 9.0.6

Product Status

PAN-OS

Versions Affected Unaffected
9.0      < 9.0.6  >= 9.0.6
8.1      < 8.1.12 >= 8.1.12
8.0      8.0.*
7.1      < 7.1.26 >= 7.1.26

Severity: CRITICAL

CVSSv3.1 Base Score: 9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H)

Solution

This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.12, PAN-OS 9.0.6, and all
later PAN-OS versions. PAN-OS 8.0 is now end-of-life as of October 31, 2019,
and is no longer covered by our Product Security Assurance policies.

Workarounds and Mitigations

This issue affects the management interface of PAN-OS and is strongly mitigated
by following best practices for securing the PAN-OS management interface.
Please review the Best Practices for Securing Administrative Access in the
PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com

Acknowledgements

This issue was found by Ben Nott of Palo Alto Networks during internal security
review.

Timeline

2020-05-13 Initial publication
Terms of usePrivacyProduct Security Assurance and Vulnerability Disclosure
Policy Report vulnerabilitiesManage subscriptions
(C) 2020 Palo Alto Networks, Inc. All rights reserved.

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