NVD

CVE-2020-2050 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

An authentication bypass vulnerability exists in the GlobalProtect SSL VPN component of Palo Alto Networks PAN-OS software that allows an attacker to bypass all client certificate checks with an invalid certificate. A remote attacker can successfully authenticate as any user and gain access to restricted VPN network resources when the gateway or portal is configured to rely entirely on certificate-based authentication. Impacted features that use SSL VPN with client certificate verification are: GlobalProtect Gateway, GlobalProtect Portal, GlobalProtect Clientless VPN In configurations where client certificate verification is used in conjunction with other authentication methods, the protections added by the certificate check are ignored as a result of this issue. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.17; PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

CNA: Palo Alto Networks, Inc.

Base Score: 8.2 HIGH

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.4 MEDIUM

Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:N)

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
https://security.paloaltonetworks.com/CVE-2020-2050	Vendor Advisory
https://security.paloaltonetworks.com/CVE-2020-2050	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-287	Improper Authentication	NIST
CWE-285	Improper Authorization	Palo Alto Networks, Inc.

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Initial Analysis by NIST 11/24/2020 1:19:30 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Added	CWE		NIST CWE-287
Added	CPE Configuration		OR cpe:2.3:o:paloaltonetworks:pan-os::::::::* versions from (including) 8.1.0 up to (excluding) 8.1.17 cpe:2.3:o:paloaltonetworks:pan-os::::::::* versions from (including) 9.0.0 up to (excluding) 9.0.11 cpe:2.3:o:paloaltonetworks:pan-os::::::::* versions from (including) 9.1.0 up to (excluding) 9.1.5 cpe:2.3:o:paloaltonetworks:pan-os::::::::* versions from (including) 10.0.0 up to (excluding) 10.0.1
Changed	Reference Type	https://security.paloaltonetworks.com/CVE-2020-2050 No Types Assigned	https://security.paloaltonetworks.com/CVE-2020-2050 Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2020-2050
NVD Published Date:
11/11/2020
NVD Last Modified:
11/21/2024
Source:
Palo Alto Networks, Inc.

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Information Technology Laboratory

National Vulnerability Database