CVE-2021-3063

PAN-OS: Denial-of-Service (DoS) Vulnerability in GlobalProtect Portal and Gateway Interfaces

State: Published
Severity: 7.5 High
Published: Nov 10, 2021
Updated: Sep 16, 2024
Reserved: Jan 6, 2021

Description

An improper handling of exceptional conditions vulnerability exists in Palo Alto Networks GlobalProtect portal and gateway interfaces that enables an unauthenticated network-based attacker to send specifically crafted traffic to a GlobalProtect interface that causes the service to stop responding. 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 8.1.21; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14-h4; PAN-OS 9.1 versions earlier than PAN-OS 9.1.11-h3; PAN-OS 10.0 versions earlier than PAN-OS 10.0.8-h4; PAN-OS 10.1 versions earlier than PAN-OS 10.1.3. Prisma Access customers are not impacted by this issue.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	palo_alto

Weaknesses

CWE-755 Improper Handling of Exceptional Conditions

Affected Products

Product	Versions
PAN-OSPalo Alto Networks	8.1 to before 8.1.21Affectedfrom 8.1.21Not affected 9.0 to before 9.0.14-h4Affectedfrom 9.0.14-h4Not affected 10.0 to before 10.0.8-h4Affectedfrom 10.0.8-h4Not affected 10.1 to before 10.1.3Affectedfrom 10.1.3Not affected 9.1 to before 9.1.11-h3Affectedfrom 9.1.11-h3Not affected
Prisma AccessPalo Alto Networks	2.2 allNot affected 2.1 allNot affected

References

https://security.paloaltonetworks.com/CVE-2021-3063

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