CVE-2021-3055CWE-611

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

Medium · published September 8, 2021

CVSS v3.1
6.5
EPSS
1%
Percentile
64.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01073 · 64.7th percentile
Weakness
CWE-611 · Improper Restriction of XML External Entity Reference
Published
2021-09-08T17:10Z
EPSS history
Timeline
  • 08 SEP 17:10Z
    PAN-OS: XML External Entity (XXE) Reference Vulnerability in the PAN-OS Web Interface
    cvelistv5