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

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

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
11/10/2021
Created
11/12/2021
Added
11/11/2021
Modified
11/26/2021

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.

Solution(s)

  • palo-alto-networks-pan-os-upgrade-10-0
  • palo-alto-networks-pan-os-upgrade-10-1
  • palo-alto-networks-pan-os-upgrade-8-1
  • palo-alto-networks-pan-os-upgrade-9-0
  • palo-alto-networks-pan-os-upgrade-9-1

References

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