{"document":{"category":"csaf_vex","csaf_version":"2.1","notes":[{"category":"summary","text":"Palo Alto Networks PSIRT provided VEX document. This document is autogenerated.","title":"PAN-OS: Spoofed Kerberos key distribution center authentication bypass"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2020-2002","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-04-08T08:10:11.294Z","generator":{"date":"2026-04-08T08:10:11.294Z","engine":{"name":"Vulnogram","version":"0.0.9"}},"id":"CVE-2020-2002","initial_release_date":"2020-05-13T16:00:00.000Z","revision_history":[{"number":"1","date":"2020-05-13T09:00:00.000Z","summary":"Initial publication"}],"status":"final","version":"1"}},"product_tree":{"branches":[{"name":"Palo Alto Networks","category":"vendor","branches":[]}]},"vulnerabilities":[{"cve":"CVE-2020-2002","product_status":{"fixed":["PANW-PAN-OS-331","PANW-PAN-OS-336","PANW-PAN-OS-333"],"known_affected":["PANW-PAN-OS-313","PANW-PAN-OS-331","PANW-PAN-OS-336","PANW-PAN-OS-333"]},"notes":[{"category":"description","text":"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. "}],"references":[{"category":"external","summary":"NVD - CVE-2020-2002","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-2002"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2020-2002","url":"https://security.paloaltonetworks.com/CVE-2020-2002"}],"threats":[{"category":"impact","description":"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. "}],"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.1,"baseSeverity":"HIGH"},"products":["PANW-PAN-OS-313","PANW-PAN-OS-331","PANW-PAN-OS-336","PANW-PAN-OS-333"]}]}]}