CVE-2022-0028: Palo Alto Networks PAN-OS Reflected Amplification Denial-of-Service Vulnerability

CVE-2022-0028 · Severity: critical · CVSS 8.6 · Exploited in the wild · Published 2022-08-22

A misconfiguration in Palo Alto Networks PAN-OS URL filtering policies allows network-based attackers to perform reflected and amplified TCP denial-of-service (RDoS) attacks. The vulnerability occurs when a URL filtering profile with blocked categories is assigned to a source zone with an external-facing interface, causing the firewall to appear as the source of the attack against a specified target.

Technologies: Palo Alto Networks PAN-OS. Vendors: Palo Alto Networks.

Quick answers

Is CVE-2022-0028 exploited in the wild?
Yes. CVE-2022-0028 is known to be exploited in the wild, first recorded on 22 August 2022. Treat it as urgent.
How severe is CVE-2022-0028?
Critical severity, with a CVSS score of 8.6, published 22 August 2022.
Which products and versions are affected?
Palo Alto Networks PAN-OS 8.1 to 8.1.23-h1, 9.0 to 9.0.16-h3, 9.1 to 9.1.14-h4, 10.0 to 10.0.11-h1, 10.1 to 10.1.6-h6, 10.2 to 10.2.2-h2.
Is there a fix for CVE-2022-0028?
A patch was published on 2022-08-15: Software updates released the week of August 15, 2022. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2022-0028 attacked?
It is attacked over the network, in an operating system.
Am I affected by CVE-2022-0028?
Check whether you run Palo Alto Networks PAN-OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Palo Alto Networks PAN-OS 8.1 to 8.1.23-h1, 9.0 to 9.0.16-h3, 9.1 to 9.1.14-h4, 10.0 to 10.0.11-h1, 10.1 to 10.1.6-h6, 10.2 to 10.2.2-h2

Timeline

  • 2022-08-15: patched: Software updates released the week of August 15, 2022.
  • 2022-08-22: disclosed
  • 2022-08-22: kev added: Added to CISA Known Exploited Vulnerabilities Catalog.
  • 2022-08-22: exploited: Reported as exploited in the wild.

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