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AUSCERT External Security Bulletin Redistribution
ESB-2020.2350.3
CVE-2020-2034 PAN-OS: OS command injection vulnerability in
GlobalProtect portal
13 July 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: GlobalProtect
Publisher: Palo Alto
Operating System: Network Appliance
Impact/Access: Root Compromise -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-2034
Original Bulletin:
https://securityadvisories.paloaltonetworks.com/CVE-2020-2034
Revision History: July 13 2020: Updated Vulnerability Description
July 10 2020: Root Compromise -- Remote/Unauthenticated Vulnerability in GlobalProtect
July 9 2020: Initial Release
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Palo Alto Networks Security Advisories / CVE-2020-2034
CVE-2020-2034 PAN-OS: OS command injection vulnerability in GlobalProtect
portal
047910
Severity 8.1 . HIGH
Attack Vector NETWORK
Attack Complexity HIGH
Privileges Required NONE
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
NVD JSON
Published 2020-07-08
Updated 2020-07-10
Reference PAN-145587
Discovered internally
Description
An OS Command Injection vulnerability in the PAN-OS GlobalProtect portal allows
an unauthenticated network-based attacker to execute arbitrary OS commands with
root privileges. An attacker would require some level of specific information
about the configuration of an impacted firewall or perform brute-force attacks
to exploit this issue. This issue cannot be exploited if the GlobalProtect
portal feature is not enabled.
This issue impacts PAN-OS 9.1 versions earlier than PAN-OS 9.1.3; PAN-OS 8.1
versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS
9.0.9; all versions of PAN-OS 8.0 and PAN-OS 7.1.
Prisma Access services are not impacted by this vulnerability. Firewalls that
were upgraded to the latest versions of PAN-OS to resolve CVE-2020-2021 are not
vulnerable to this issue.
Palo Alto Networks is not aware of any malicious attempts to exploit this
vulnerability.
Product Status
PAN-OS
Versions Affected Unaffected
9.1 < 9.1.3 >= 9.1.3
9.0 < 9.0.9 >= 9.0.9
8.1 < 8.1.15 >= 8.1.15
8.0 8.0.*
7.1 7.1.*
Required Configuration for Exposure
This issue is applicable only where GlobalProtect portal is enabled.
Severity: HIGH
CVSSv3.1 Base Score: 8.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H)
Weakness Type
CWE-78 OS Command Injection
Solution
This issue is fixed in PAN-OS 8.1.15, PAN-OS 9.0.9, PAN-OS 9.1.3, and all later
PAN-OS versions.
PAN-OS 7.1 and PAN-OS 8.0 are end-of-life (as of June 30, 2020 and October 31,
2019 respectively) and are no longer covered by our Product Security Assurance
policies.
Workarounds and Mitigations
Until PAN-OS software is upgraded to a fixed version, enabling signatures for
Unique Threat ID 58658 on traffic destined for the GlobalProtect portal will
block attacks against CVE-2020-2034.
Acknowledgments
This issue was found by Yamata Li of Palo Alto Networks during internal
security review.
Timeline
2020-07-10 Updated workaround section with Threat Prevention signature.
2020-07-08 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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