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CVE-2021-3055

PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 9.0.14, 9.1.10, 10.0.6, 8.1.20
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Palo Alto Networks PAN-OS

    From 9.0 · fixed in 9.0.14; From 9.1 · fixed in 9.1.10; From 10.0 · fixed in 10.0.6; From 8.1 · fixed in 8.1.20

References 1

security.paloaltonetworks.com