CVE-2019-4521
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 · uneditedPlatform System Manager in IBM Cloud Pak System 2.3 is potentially vulnerable to CVS Injection. A remote attacker could execute arbitrary commands on the system, caused by improper validation of csv file contents. IBM X-Force ID: 165179.
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 confidencePlatform System Manager in IBM Cloud Pak System 2.3 is vulnerable to CSV Injection due to improper validation of CSV file contents. A remote attacker can craft malicious CSV data that leads to arbitrary command execution on the affected system.
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= 2.3= 2.3.0.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Identify IBM Cloud Pak System installationLocate IBM Cloud Pak System installations in your environment by checking for the product directory structure, container images, or installation manifests. Common locations include /opt/ibm/cloudpak or check container registries for 'cloud-pak-system' images.Affected if IBM Cloud Pak System is found installed in the environment
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Verify the installed versionDetermine the installed version of IBM Cloud Pak System by checking installation manifests, version files, or the platform management interface. Compare the version number against the affected versions 2.3 and 2.3.0.1.Affected if The installed version is exactly 2.3 or 2.3.0.1
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Confirm Platform System Manager is activeCheck if the Platform System Manager component is deployed and running within the Cloud Pak System environment. This may be visible in the platform admin console, Kubernetes/OpenShift pods, or system service listings.Affected if Platform System Manager is present and operational in the environment
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Check for CSV processing functionalityIdentify if the Platform System Manager has any features that accept or process CSV file uploads, exports, or imports. Review the component's available functions, upload endpoints, or data import features.Affected if CSV file upload, import, or processing features are available in Platform System Manager
A user is affected if they have IBM Cloud Pak System version 2.3 or 2.3.0.1 with Platform System Manager running and CSV processing capabilities exposed.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataApply the IBM patch for CVE-2019-4521 when available, or upgrade to a patched version of Cloud Pak System. If no vendor patch exists, implement input validation and sanitization for CSV file processing in the Platform System Manager component.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4521 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2019-4521 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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