Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2021-3055

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.

Published

2021-09-08T17:15:12.337

Last Modified

2024-11-21T06:20:51.793

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:N/A:C

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: SINGLE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

8.0

Impact Score

7.8

Weaknesses
  • Type: Secondary
    CWE-611
  • Type: Primary
    CWE-611
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System paloaltonetworks pan-os < 8.1.20 Yes
Operating System paloaltonetworks pan-os < 9.0.14 Yes
Operating System paloaltonetworks pan-os < 9.1.10 Yes
Operating System paloaltonetworks pan-os < 10.0.6 Yes
References