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AUSCERT External Security Bulletin Redistribution
ESB-2021.0488
CVE-2021-3033 Prisma Cloud Compute: SAML Authentication
Bypass Vulnerability in Console
11 February 2021
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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
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3033
Original Bulletin:
https://securityadvisories.paloaltonetworks.com/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
Console
047910
Severity 9.1 . CRITICAL
Attack Vector NETWORK
Attack Complexity LOW
Privileges Required NONE
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact NONE
NVD JSON
Published 2021-02-10
Updated 2021-02-10
Reference
Discovered internally
Description
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.
Product Status
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
authentication.
Severity: CRITICAL
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)
Exploitation Status
Palo Alto Networks is not aware of any malicious exploitation of this issue.
Weakness Type
CWE-347 Improper Verification of Cryptographic Signature
Solution
This issue is fixed in Prisma Cloud Compute 20.12 update 1 and all later
versions.
Workarounds and Mitigations
You can mitigate the impact of this issue by disabling SAML authentication in
the Prisma Cloud Compute configuration
Acknowledgments
This issue was found by Palo Alto Networks during internal security review.
Timeline
2021-02-10 Initial publication
Terms of usePrivacyProduct Security Assurance and Vulnerability Disclosure
Policy Report vulnerabilitiesManage subscriptions
(C) 2020 Palo Alto Networks, Inc. All rights reserved.
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