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Storage Fusion HciApplication · Ibm

CVE-2023-43040

CRITICAL · 9.8 CVSS v3.1 Published 2024-05-14
Fix available
A fix is available. Upgrade to 2.8.0 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
IBM Spectrum Fusion HCI 2.5.2 through 2.7.2 could allow an attacker to perform unauthorized actions in RGW for Ceph due to improper bucket access. IBM X-Force ID: 266807.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

IBM Spectrum Fusion HCI versions 2.5.2 through 2.7.2 contain a critical authorization flaw in the RADOS Gateway (RGW) component for Ceph object storage. Due to improper bucket access controls, an unauthenticated or low-privileged attacker could perform unauthorized actions on Ceph storage buckets, including potentially reading, writing, or deleting stored objects.

MitigationApply IBM's patch for CVE-2023-43040 by upgrading to IBM Spectrum Fusion HCI 2.7.3 or later, or obtain and deploy the appropriate IBM fix from their security bulletin.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Storage Fusion HciApplication
Affected:>= 2.5.2, < 2.8.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify IBM Spectrum Fusion HCI installation
    Locate the IBM Spectrum Fusion HCI installation and determine the installed version number. This may be found in the product's management interface, installation directory, or version reporting tool.
    Affected if The installed version cannot be determined or is not IBM Spectrum Fusion HCI.
  2. Compare installed version to affected range
    Compare the identified version against the affected range of >= 2.5.2 and < 2.8.0. Versions 2.5.2 through 2.7.2 are affected by this CVE.
    Affected if The installed version falls within 2.5.2 through 2.7.2.
  3. Verify RADOS Gateway (RGW) component is in use
    Check if the Ceph RADOS Gateway (RGW) component is deployed and enabled in the IBM Spectrum Fusion HCI environment. This is the specific component where the authorization flaw exists.
    Affected if RGW is enabled and serving Ceph object storage.
  4. Review bucket access controls
    Examine the bucket access control policies configured in the RGW component. The vulnerability stems from improper bucket access controls that could allow unauthorized bucket operations.
    Affected if Bucket access controls permit operations from unauthenticated or low-privileged users.

The environment is affected if IBM Spectrum Fusion HCI version 2.5.2 through 2.7.2 is installed with the RADOS Gateway (RGW) component enabled and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 2.8.0 or later
Fixed in 2.8.0
Interim mitigation

Apply IBM's patch for CVE-2023-43040 by upgrading to IBM Spectrum Fusion HCI 2.7.3 or later, or obtain and deploy the appropriate IBM fix from their security bulletin.

Recommended fix High confidence

IBM Spectrum Fusion HCI 2.8.0 or later

  1. 1. Schedule a maintenance window for the upgrade
  2. 2. Back up all critical data and configurations
  3. 3. Consult IBM documentation for the specific upgrade procedure for your deployment method
  4. 4. Upgrade IBM Spectrum Fusion HCI to version 2.8.0 or later
  5. 5. After upgrade, verify the RGW for Ceph bucket access controls are functioning correctly
  6. 6. Confirm all services are running properly post-upgrade
Caveat Review IBM release notes for version 2.8.0 to check for any breaking changes or required migration steps before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Storage Fusion Hci Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing8.0 h
  • Review / QA4.0 h
24.0 hours of engineering $4,160
Get the upgrade done

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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-43040 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data