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AUSCERT External Security Bulletin Redistribution
CVE-2021-3033 Prisma Cloud Compute: SAML Authentication
Bypass Vulnerability in Console
11 February 2021
AusCERT Security Bulletin Summary
Product: Prisma Cloud Compute
Publisher: Palo Alto
Operating System: Network Appliance
Impact/Access: Unauthorised Access -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
CVE Names: CVE-2021-3033
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Palo Alto Networks Security Advisories / CVE-2021-3033
CVE-2021-3033 Prisma Cloud Compute: SAML Authentication Bypass Vulnerability in
Severity 9.1 . CRITICAL
Attack Vector NETWORK
Attack Complexity LOW
Privileges Required NONE
User Interaction NONE
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact NONE
An improper verification of cryptographic signature vulnerability exists in the
Palo Alto Networks Prisma Cloud Compute console. This vulnerability enables an
attacker to bypass signature validation during SAML authentication by logging
in to the Prisma Cloud Compute console as any authorized user.
This issue impacts:
All versions of Prisma Cloud Compute 19.11, Prisma Cloud Compute 20.04, and
Prisma Cloud Compute 20.09; Prisma Cloud Compute 20.12 before update 1.
Prisma Cloud Compute SaaS version is not impacted by this vulnerability.
Versions Affected Unaffected
Prisma Cloud Compute 20.12 < update 1 >= update 1
Prisma Cloud Compute 20.09 <= update 2
Prisma Cloud Compute 20.04 <= update 2
Prisma Cloud Compute 19.11 <= update 2
Required Configuration for Exposure
This issue impacts only Prisma Cloud Compute configurations that use SAML
CVSSv3.1 Base Score: 9.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N)
Palo Alto Networks is not aware of any malicious exploitation of this issue.
CWE-347 Improper Verification of Cryptographic Signature
This issue is fixed in Prisma Cloud Compute 20.12 update 1 and all later
Workarounds and Mitigations
You can mitigate the impact of this issue by disabling SAML authentication in
the Prisma Cloud Compute configuration
This issue was found by Palo Alto Networks during internal security review.
2021-02-10 Initial publication
Policy Report vulnerabilitiesManage subscriptions
(C) 2020 Palo Alto Networks, Inc. All rights reserved.
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