title: PAN-OS: Management web interface denial-of-service (DoS)
description: An insecure configuration of the appweb daemon of Palo Alto Networks PAN-OS 8.1 allows a remote unauthenticated user to send a specifically crafted request to the device that causes the appweb service to crash. 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 all versions of PAN-OS 8.0, and PAN-OS 8.1 versions earlier than 8.1.16.
problem types: CWE-16 Configuration
affected:
{
product: PAN-OS
vendor: Palo Alto Networks
versions:
status: unaffected, version: 9.0.*
status: unaffected, version: 9.1.*
status: unaffected, version: 10.0.*
status: affected, version: 8.0.*
changes: [at: 8.1.16, status: unaffected], lessThan: 8.1.16, status: affected, version: 8.1, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
version: 3.1
]
exploits: Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.
solutions: This issue is fixed in PAN-OS 8.1.16 and all later PAN-OS versions.
PAN-OS 7.1 and PAN-OS 8.0 are end-of-life and are no longer covered by our Product Security Assurance policies.
workarounds: This issue impacts the management web interface of PAN-OS. You can mitigate the impact of this issue by following best practices for securing the PAN-OS management web interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at https://docs.paloaltonetworks.com/best-practices.