CVE-2021-3051: Cortex XSOAR: Authentication Bypass in SAML Authentication

Published Sep 8, 2021
·
Updated

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.

Affected Software

22 affected components
paloaltonetworks Cortex Xsoar=5.5.0
paloaltonetworks Cortex Xsoar=5.5.0-70066
paloaltonetworks Cortex Xsoar=5.5.0-73387
paloaltonetworks Cortex Xsoar=5.5.0-75211
paloaltonetworks Cortex Xsoar=5.5.0-78518
paloaltonetworks Cortex Xsoar=5.5.0-94592
paloaltonetworks Cortex Xsoar=6.0.2
paloaltonetworks Cortex Xsoar=6.0.2-90947
paloaltonetworks Cortex Xsoar=6.0.2-93351
paloaltonetworks Cortex Xsoar=6.0.2-94597
paloaltonetworks Cortex Xsoar=6.0.2-97682
paloaltonetworks Cortex Xsoar=6.1.0
paloaltonetworks Cortex Xsoar=6.1.0-1016923
paloaltonetworks Cortex Xsoar=6.1.0-1031903
paloaltonetworks Cortex Xsoar=6.1.0-1077664
paloaltonetworks Cortex Xsoar=6.1.0-1209934
paloaltonetworks Cortex Xsoar=6.1.0-1271079
paloaltonetworks Cortex Xsoar=6.1.0-848144
paloaltonetworks Cortex Xsoar=6.2.0
paloaltonetworks Cortex Xsoar=6.2.0-1271082
paloaltonetworks Cortex Xsoar=6.2.0-1321594
paloaltonetworks Cortex Xsoar=6.2.0-1473927

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade Palo Alto Networks Cortex XSOAR to a version that resolves this vulnerability.

    Fixed in 5.5.0 build 1578677
  2. Upgrade

    Upgrade Palo Alto Networks Cortex XSOAR to a version that resolves this vulnerability.

    Fixed in 6.0.2 build 1576452
  3. Upgrade

    Upgrade Palo Alto Networks Cortex XSOAR to a version that resolves this vulnerability.

    Fixed in 6.1.0 build 1578663
  4. Upgrade

    Upgrade Palo Alto Networks Cortex XSOAR to a version that resolves this vulnerability.

    Fixed in 6.2.0 build 1578666

Event History

Sep 8, 2021
CVE Published
via MITRE·05:10 PM
Data Sourced
via MITRE·05:10 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·05:15 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is CVE-2021-3051?

CVE-2021-3051 is an improper verification of cryptographic signature vulnerability in Cortex XSOAR SAML authentication.

2

What is the severity of CVE-2021-3051?

The severity of CVE-2021-3051 is high, with a CVSS score of 8.1.

3

Which version of Cortex XSOAR is affected by CVE-2021-3051?

Cortex XSOAR versions 5.5.0 to 6.2.0 are affected by CVE-2021-3051.

4

How does CVE-2021-3051 impact the system?

CVE-2021-3051 allows an unauthenticated attacker with specific knowledge of the Cortex XSOAR instance to access protected resources and perform unauthorized actions.

5

Is there a fix available for CVE-2021-3051?

Yes, Palo Alto Networks has released a security advisory with mitigation steps for CVE-2021-3051.

Contact

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