CVE-2021-3055
Description
An improper restriction of XML external entity (XXE) reference vulnerability in the Palo Alto Networks PAN-OS web interface enables an authenticated administrator to read any arbitrary file from the file system and send a specifically crafted request to the firewall that causes the service to crash. Repeated attempts to send this request result in denial of service to all PAN-OS services by restarting the device and putting it into maintenance mode. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.20; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.6. This issue does not affect Prisma Access.
How to fix
- paloaltonetworks pan-os8.1.20, 9.0.14, 9.1.10, 10.0.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| paloaltonetworks pan-os | 8.1.0 ≤ v < 8.1.20, 9.0.0 ≤ v < 9.0.14, 9.1.0 ≤ v < 9.1.10, 10.0.0 ≤ v < 10.0.6 | 8.1.20, 9.0.14, 9.1.10, 10.0.6 |
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Attack Surface Management
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