{"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: Improper SAML SSO authorization of shared local users"}],"publisher":{"category":"vendor","name":"Palo Alto Networks","namespace":"https://security.paloaltonetworks.com"},"title":"Palo Alto Networks PSIRT provided VEX document: CVE-2020-1998","distribution":{"text":"Copyright © 2024 Palo Alto Networks. All rights reserved.","tlp":{"label":"CLEAR","url":"https://www.first.org/tlp/"}},"tracking":{"current_release_date":"2026-04-11T00:25:17.435Z","generator":{"date":"2026-04-11T00:25:17.435Z","engine":{"name":"Vulnogram","version":"0.0.9"}},"id":"CVE-2020-1998","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-2020-1998","product_status":{"fixed":["PANW-PAN-OS-331","PANW-PAN-OS-333","PANW-PAN-OS-336","PANW-PAN-OS-337"],"known_affected":["PANW-PAN-OS-313","PANW-PAN-OS-331","PANW-PAN-OS-333","PANW-PAN-OS-336","PANW-PAN-OS-337"]},"notes":[{"category":"description","text":"An improper authorization vulnerability in PAN-OS that mistakenly uses the permissions of local linux users instead of the intended SAML permissions of the account when the username is shared for the purposes of SSO authentication. This can result in authentication bypass and unintended resource access for the user."}],"references":[{"category":"external","summary":"NVD - CVE-2020-1998","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1998"},{"category":"self","summary":"Palo Alto Networks Security Advisory CVE-2020-1998","url":"https://security.paloaltonetworks.com/CVE-2020-1998"}],"threats":[{"category":"impact","description":"An improper authorization vulnerability in PAN-OS that mistakenly uses the permissions of local linux users instead of the intended SAML permissions of the account when the username is shared for the purposes of SSO authentication. This can result in authentication bypass and unintended resource access for the user."}],"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":5.4,"baseSeverity":"MEDIUM"},"products":["PANW-PAN-OS-313","PANW-PAN-OS-331","PANW-PAN-OS-333","PANW-PAN-OS-336","PANW-PAN-OS-337"]}]}]}