PT-2022-12957 · Palo Alto Networks · Pan-Os

Nicholas Newsom · Published 2022-04-13 · Updated 2022-10-18 · CVE-2022-0023

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions PAN-OS versions prior to 8.1.22 PAN-OS versions prior to 9.0.16 PAN-OS versions prior to 9.1.13 PAN-OS versions prior to 10.0.10 PAN-OS versions prior to 10.1.5

Description An improper handling of exceptional conditions issue exists in the DNS proxy feature of Palo Alto Networks PAN-OS software. This allows a meddler-in-the-middle (MITM) to send specifically crafted traffic to the firewall, causing the service to restart unexpectedly. Repeated attempts to send this request result in denial-of-service to all PAN-OS services by restarting the device in maintenance mode. This issue does not impact Panorama appliances and Prisma Access customers.

Recommendations For PAN-OS 8.1, update to version 8.1.22 or later. For PAN-OS 9.0, update to version 9.0.16 or later. For PAN-OS 9.1, update to version 9.1.13 or later. For PAN-OS 10.0, update to version 10.0.10 or later. For PAN-OS 10.1, update to version 10.1.5 or later.

Fix

DoS

Improper Handling of Exceptional Conditions

Weakness Enumeration

CWE-755

Related Identifiers

CVE-2022-0023

Affected Products

Pan-Os

References · 4

• https://security.paloaltonetworks.com/CVE-2022-0023 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-0023 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-0023 · Security Note
• https://t.me/cvenotify/28896 · Telegram Post