title: Cortex XSOAR: Authentication Bypass in SAML Authentication
description: An improper verification of cryptographic signature vulnerability exists in Cortex XSOAR SAML authentication that enables an unauthenticated network-based attacker with specific knowledge of the Cortex XSOAR instance to access protected resources and perform unauthorized actions on the Cortex XSOAR server. This issue impacts: Cortex XSOAR 5.5.0 builds earlier than 1578677; Cortex XSOAR 6.0.2 builds earlier than 1576452; Cortex XSOAR 6.1.0 builds earlier than 1578663; Cortex XSOAR 6.2.0 builds earlier than 1578666. All Cortex XSOAR instances hosted by Palo Alto Networks are protected from this vulnerability; no additional action is required for these instances.
problem types: CWE-347 Improper Verification of Cryptographic Signature
affected:
{
product: Cortex XSOAR
vendor: Palo Alto Networks
versions:
changes: [at: 1578677, status: unaffected], lessThan: 1578677, status: affected, version: 5.5.0, versionType: custom
changes: [at: 1576452, status: unaffected], lessThan: 1576452, status: affected, version: 6.0.2, versionType: custom
changes: [at: 1578663, status: unaffected], lessThan: 1578663, status: affected, version: 6.1.0, versionType: custom
changes: [at: 1578666, status: unaffected], lessThan: 1578666, status: affected, version: 6.2.0, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 8.1
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]
exploits: Palo Alto Networks is not aware of any malicious attempts to exploit this vulnerability.
solutions: This issue is fixed in Cortex XSOAR 5.5.0 build 1578677, Cortex XSOAR 6.0.2 build 1576452, Cortex XSOAR 6.1.0 build 1578663, Cortex XSOAR 6.2.0 build 1578666, and all later Cortex XSOAR versions.
workarounds: To completely prevent this issue from being exploited before you can upgrade your Cortex XSOAR server, disable SAML authentication integration.
You can also restrict network access to the Cortex XSOAR server to allow only trusted users to further reduce the impact of this issue.