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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1711 Panorama context switch session cookie disclosure 14 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: PAN-OS Publisher: Palo Alto Operating System: Network Appliance Impact/Access: Access Confidential Data -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-2013 Original Bulletin: https://securityadvisories.paloaltonetworks.com/CVE-2020-2013 - --------------------------BEGIN INCLUDED TEXT-------------------- Palo Alto Networks Security Advisories / CVE-2020-2013 CVE-2020-2013 PAN-OS: Panorama context switch session cookie disclosure 047910 Severity 8.3 . HIGH Attack Vector NETWORK Attack Complexity HIGH Privileges Required NONE User Interaction REQUIRED Scope CHANGED Confidentiality Impact HIGH Integrity Impact HIGH Availability Impact HIGH NVD JSON Published: 2020-05-13 Updated: 2020-05-13 Ref#: PAN-125122 Description A cleartext transmission of sensitive information vulnerability in Palo Alto Networks PAN-OS Panorama that discloses an authenticated PAN-OS administrator's PAN-OS session cookie. When an administrator issues a context switch request into a managed firewall with an affected PAN-OS Panorama version, their PAN-OS session cookie is transmitted over cleartext to the firewall. An attacker with the ability to intercept this network traffic between the firewall and Panorama can access the administrator's account and further manipulate devices managed by Panorama. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; All version of PAN-OS 8.0; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; and PAN-OS 9.1 versions earlier than 9.1.1. Product Status PAN-OS Versions Affected Unaffected 9.1 < 9.1.1 >= 9.1.1 9.0 < 9.0.6 >= 9.0.6 8.1 < 8.1.13 >= 8.1.13 8.0 8.0.* 7.1 < 7.1.26 >= 7.1.26 Severity: HIGH CVSSv3.1 Base Score: 8.3 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H) Solution This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.6, PAN-OS 9.1.1, 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 One possible vulnerability mitigation is to shorten the length of administrator session idle timeout. This reduces the likelihood the exposed administrator's session cookie is valid at time of attack. 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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