CVE-2024-5918

PAN-OS: Improper Certificate Validation Enables Impersonation of a Legitimate GlobalProtect User

Published Nov 14, 2024 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed

Description

An improper certificate validation vulnerability in Palo Alto Networks PAN-OS software enables an authorized user with a specially crafted client certificate to connect to an impacted GlobalProtect portal or GlobalProtect gateway as a different legitimate user. This attack is possible only if you "Allow Authentication with User Credentials OR Client Certificate."

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Palo Alto Networks

Cloud NGFW

unaffected

Version	Status	Constraints
`All`	unaffected	—

Palo Alto Networks

PAN-OS

unaffected

Version	Status	Constraints
`11.2.0`	unaffected	—
`11.1.0`	unaffected	—
`11.0.0`	affected	< 11.0.3
`10.2.0`	affected	< 10.2.4-h5
`10.1.0`	affected	< 10.1.11

Palo Alto Networks

Prisma Access

unaffected

Version	Status	Constraints
`All`	unaffected	—

Configuration 1 [-]

OR	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os::::::::
	cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:-::::::
	cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h2::::::
	cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h3::::::
	cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h4::::::

No data.

No data available yet.

Remediation

Vendor Workaround

You can mitigate this issue by setting the "Allow Authentication with User Credentials OR Client Certificate" option to "No." Additional information is available here: https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-web-interface-help/globalprotect/network-globalprotect-portals/globalprotect-portals-authentication-configuration-tab * https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-web-interface-help/globalprotect/network-globalprotect-gateways/globalprotect-gateway-authentication-tab https://docs.paloaltonetworks.com/pan-os/11-0/pan-os-web-interface-help/globalprotect/network-globalprotect-gateways/globalprotect-gateway-authentication-tab

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-47049	An improper certificate validation vulnerability in Palo Alto Networks PAN-OS software enables an authorized user with a specially crafted client certificate to connect to an impacted GlobalProtect portal or GlobalProtect gateway as a different legitimate user. This attack is possible only if you "Allow Authentication with User Credentials OR Client Certificate."

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.176% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://security.paloaltonetworks.com/CVE-2024-5918

History

Nov 10, 2026 9:30 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Oct 1, 2025 6:45 PM Affected versions updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
CPEs		cpe:2.3:o:paloaltonetworks:pan-os::::::::
Metrics		cvssV3_1 `{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}`

Nov 14, 2024 9:45 AM Description updated. Title updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		An improper certificate validation vulnerability in Palo Alto Networks PAN-OS software enables an authorized user with a specially crafted client certificate to connect to an impacted GlobalProtect portal or GlobalProtect gateway as a different legitimate user. This attack is possible only if you "Allow Authentication with User Credentials OR Client Certificate."
Title		PAN-OS: Improper Certificate Validation Enables Impersonation of a Legitimate GlobalProtect User
First Time appeared		Paloaltonetworks Paloaltonetworks pan-os
Weaknesses		CWE-295
CPEs		cpe:2.3:o:paloaltonetworks:pan-os:10.1.0:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.10:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.1:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.2:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.3:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.4:h6:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.5:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.5:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.5:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.5:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.5:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h6:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h7:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.6:h8:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.7:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.7:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h6:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.8:h7:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h6:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h7:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1.9:h8:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.1:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.0:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.0:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.0:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.0:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.1:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.1:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.1:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.2:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h10:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h11:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h12:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h13:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h5:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h6:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h7:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h8:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.3:h9:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2.4:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:10.2:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.0:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.0:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.0:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.0:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.1:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.1:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.1:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.1:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.1:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.2:-:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.2:h1:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.2:h2:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.2:h3:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0.2:h4:::::: cpe:2.3:o:paloaltonetworks:pan-os:11.0:-::::::
Vendors & Products		Paloaltonetworks Paloaltonetworks pan-os
References		https://security.paloaltonetworks.com/CVE-2024-5918
Metrics		cvssV4_0 `{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L/AU:N/R:A/V:C/RE:M/U:Amber'}`