An authentication bypass by spoofing vulnerability exists in the authentication daemon and User-ID components of Palo Alto Networks PAN-OS by failing to verify the integrity of the Kerberos key distribution center (KDC) before authenticating users. This affects all forms of authentication that use a Kerberos authentication profile. A man-in-the-middle type of attacker with the ability to intercept communication between PAN-OS and KDC can login to PAN-OS as an administrator. This issue affects: PAN-OS 7.1 versions earlier than 7.1.26; PAN-OS 8.1 versions earlier than 8.1.13; PAN-OS 9.0 versions earlier than 9.0.6; All version of PAN-OS 8.0.
Fixes

Solution

This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.6, and all later PAN-OS versions. PAN-OS 8.0 is now end-of-life as of October 31, 2019, and is no longer covered by our Product Security Assurance policies.


Workaround

Ensure that PAN-OS communicates to Kerberos server over a secured network with access restricted to trusted users. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: palo_alto

Published:

Updated: 2024-09-17T04:03:36.143Z

Reserved: 2019-12-04T00:00:00

Link: CVE-2020-2002

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-05-13T19:15:12.987

Modified: 2024-11-21T05:24:24.980

Link: CVE-2020-2002

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.