title: PAN-OS: Improper SAML Authentication Vulnerability in GlobalProtect Portal
description: An improper authentication vulnerability exists in Palo Alto Networks PAN-OS software that enables a SAML authenticated attacker to impersonate any other user in the GlobalProtect Portal and GlobalProtect Gateway when they are configured to use SAML authentication. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.9; PAN-OS 10.0 versions earlier than PAN-OS 10.0.5. PAN-OS 10.1 versions are not impacted.
problem types: CWE-287 Improper Authentication
affected:
{
product: PAN-OS
vendor: Palo Alto Networks
versions:
status: unaffected, version: 10.1.*
changes: [at: 8.1.19, status: unaffected], lessThan: 8.1.19, status: affected, version: 8.1, versionType: custom
changes: [at: 9.0.14, status: unaffected], lessThan: 9.0.14, status: affected, version: 9.0, versionType: custom
changes: [at: 9.1.9, status: unaffected], lessThan: 9.1.9, status: affected, version: 9.1, versionType: custom
changes: [at: 10.0.5, status: unaffected], lessThan: 10.0.5, status: affected, version: 10.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 6.8
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: LOW
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
version: 3.1
]
exploits: Palo Alto Networks is not aware of any malicious exploitation of this issue.
solutions: This issue is fixed in PAN-OS 8.1.19, PAN-OS 9.0.14, PAN-OS 9.1.9, PAN-OS 10.0.5, and all later PAN-OS versions.
workarounds: You can disable SAML authentication for any impacted GlobalProtect portal or gateway until you upgrade the PAN-OS firewall to a fixed version.