CVE-2020-1975 Missing XML Validation in PAN-OS Web Interface

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

Scope UNCHANGED

Attack Complexity LOW

Confidentiality Impact HIGH

Privileges Required HIGH

Integrity Impact HIGH

User Interaction REQUIRED

Availability Impact HIGH

NVD JSON

Published 2020-02-12

Updated 2020-02-12

Reference PAN-124593

Discovered externally

Description

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.

Product Status

Versions	Affected	Unaffected
PAN-OS 9.0	< 9.0.6	>= 9.0.6
PAN-OS 8.1	< 8.1.12	>= 8.1.12
PAN-OS 8.0	None	8.0.*
PAN-OS 7.1	None	7.1.*

Required Configuration for Exposure

This issue requires that the web-based management interface is enabled on the hardware or virtual appliance.

Severity: MEDIUM

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)

Weakness Type

CWE-112 Missing XML Validation

Solution

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.

Acknowledgments

This issue was found during a security assessment performed by a customer.