CVE-2021-3051

Cortex XSOAR: Authentication Bypass in SAML Authentication

Published Sep 8, 2021 CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

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.


Vendor Workaround

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.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2021-26403 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.
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
palo_alto
Published
Updated
Sep 17, 2024, 1:10 AM
Reserved
Jan 6, 2021, 12:00 AM
Status
Modified
Published
Sep 8, 2021, 5:15 PM
Modified
Jun 17, 2026, 4:04 AM