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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1723 GlobalProtect Clientless VPN session hijacking 14 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: GlobalProtect Clientless VPN Publisher: Palo Alto Operating System: Network Appliance Impact/Access: Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-2005 Original Bulletin: https://securityadvisories.paloaltonetworks.com/CVE-2020-2005 - --------------------------BEGIN INCLUDED TEXT-------------------- Palo Alto Networks Security Advisories / CVE-2020-2005 CVE-2020-2005 PAN-OS: GlobalProtect Clientless VPN session hijacking 047910 Severity 7.1 . HIGH Attack Vector NETWORK Attack Complexity LOW Privileges Required NONE User Interaction REQUIRED Scope UNCHANGED Confidentiality Impact HIGH Integrity Impact LOW Availability Impact NONE NVD JSON Published: 2020-05-13 Updated: 2020-05-13 Ref#: GPCON-551 Description A cross-site scripting (XSS) vulnerability exists when visiting malicious websites with the Palo Alto Networks GlobalProtect Clientless VPN that can compromise the user's active session. 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 8.1.13; PAN-OS 9.0 versions earlier than 9.0.7. Product Status PAN-OS Versions Affected Unaffected 9.0 < 9.0.7 >= 9.0.7 8.1 < 8.1.13 >= 8.1.13 8.0 8.0.* 7.1 < 7.1.26 >= 7.1.26 Required Configuration This issue only affects firewalls configured with GlobalProtect Clientless VPN. Severity: HIGH CVSSv3.1 Base Score: 7.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N) Solution This issue is fixed in PAN-OS 8.0.21, PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.7, and all later versions of PAN-OS. 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 Configure GlobalProtect Clientless VPN to only access known trusted websites, and block access all other websites. Acknowledgements This issue was discovered by Ron Masas 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. 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It may not be updated when updates to the original are made. 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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