CVE-2022-0028 Detail

Current Description

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone that has an external facing interface. This configuration is not typical for URL filtering and, if set, is likely unintended by the administrator. If exploited, this issue would not impact the confidentiality, integrity, or availability of our products. However, the resulting denial-of-service (DoS) attack may help obfuscate the identity of the attacker and implicate the firewall as the source of the attack. We have taken prompt action to address this issue in our PAN-OS software. All software updates for this issue are expected to be released no later than the week of August 15, 2022. This issue does not impact Panorama M-Series or Panorama virtual appliances. This issue has been resolved for all Cloud NGFW and Prisma Access customers and no additional action is required from them.

View Analysis Description

Analysis Description

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone that has an external facing interface. This configuration is not typical for URL filtering and, if set, is likely unintended by the administrator. If exploited, this issue would not impact the confidentiality, integrity, or availability of our products. However, the resulting denial-of-service (DoS) attack may help obfuscate the identity of the attacker and implicate the firewall as the source of the attack. We have taken prompt action to address this issue in our PAN-OS software. All software updates for this issue are expected to be released no later than the week of August 15, 2022. This issue does not impact Panorama M-Series or Panorama virtual appliances. This issue has been resolved for all Cloud NGFW and Prisma Access customers and no additional action is required from them.

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption NIST  
CWE-406 Insufficient Control of Network Message Volume (Network Amplification) Palo Alto Networks, Inc.  

Change History

2 change records found show changes

Initial Analysis 8/15/2022 8:14:23 PM

Action Type Old Value New Value
Added CPE Configuration Record truncated, showing 500 of 690 characters.
View Entire Change Record

OR
     *cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* versions from (including) 8.1 up to (excluding) 8.1.23-h1
     *cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* versions from (including) 9.0 up to (excluding) 9.0.16-h3
     *cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* versions from (including) 9.1 up to (excluding) 9.1.14-h4
     *cpe:2.3:o:paloaltonetworks:pan-os:*:*:*:*:*:*:*:* versions from (including) 10.0 up to (excluding) 10.0.11-h1
     *cpe:2.3:o:paloaltonetworks:pan-os
Added CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Added CWE
NIST CWE-400
Changed Reference Type
https://security.paloaltonetworks.com/CVE-2022-0028 No Types Assigned
https://security.paloaltonetworks.com/CVE-2022-0028 Mitigation, Third Party Advisory

CVE Modified by Palo Alto Networks, Inc. 8/10/2022 4:15:24 PM

Action Type Old Value New Value
Changed Description Record truncated, showing 500 of 1298 characters.
View Entire Change Record

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target.

To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zon
Record truncated, showing 500 of 1294 characters.
View Entire Change Record

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service (RDoS) attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series (hardware), VM-Series (virtual) and CN-Series (container) firewall against an attacker-specified target. To be misused by an external attacker, the firewall configuration must have a URL filtering profile with one or more blocked categories assigned to a source zone

Quick Info

CVE Dictionary Entry:
CVE-2022-0028
NVD Published Date:
08/10/2022
NVD Last Modified:
08/15/2022
Source:
Palo Alto Networks, Inc.