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AUSCERT External Security Bulletin Redistribution
Missing XML Validation in PAN-OS Web Interface
14 February 2020
AusCERT Security Bulletin Summary
Publisher: Palo Alto
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
CVE Names: CVE-2020-1975
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Palo Alto Networks Security Advisories / CVE-2020-1975
CVE-2020-1975 Missing XML Validation in PAN-OS Web Interface
Severity 6.8 . MEDIUM
Attack Vector NETWORK
Attack Complexity LOW
Privileges Required HIGH
User Interaction REQUIRED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH
Missing XML validation vulnerability in the PAN-OS web interface on Palo Alto
Networks PAN-OS software allows authenticated users to inject arbitrary XML
that results in privilege escalation.
This issue affects PAN-OS 8.1 versions earlier than PAN-OS 8.1.12 and PAN-OS
9.0 versions earlier than PAN-OS 9.0.6.
This issue does not affect PAN-OS 7.1, PAN-OS 8.0, or PAN-OS 9.1 or later
Versions Affected Unaffected
8.1 < 8.1.12 >= 8.1.12
9.0 < 9.0.6 >= 9.0.6
This issue requires that the web-based management interface is enabled on the
hardware or virtual appliance.
CVSSv3.1 Base Score: 6.8 ( CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H )
This issue is fixed in PAN-OS 8.1.12, PAN-OS 9.0.6, and all later versions.
Workarounds and Mitigations:
This issue affects the web-based management interface of the appliance. Access
to the web-based management interface of the appliance should be limited
strictly to only trusted users, hosts, and networks.
o This issue was found during a security assessment performed by a customer.
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