CVE-2019-4051
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 · uneditedSome URIs in IBM API Connect 2018.1 and 2018.4.1.3 disclose system specification information like the machine id, system uuid, filesystem paths, network interface names along with their mac addresses. An attacker can use this information in targeted attacks. IBM X-Force ID: 156542.
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 · moderate confidenceIBM API Connect versions 2018.1 and 2018.4.1.3 contain certain URIs that expose sensitive system specification information including machine ID, system UUID, filesystem paths, network interface names, and MAC addresses. This information disclosure vulnerability allows unauthenticated attackers to gather reconnaissance data for use in targeted attacks.
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>= 2018.1.0, <= 2018.4.1.3CVSS 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
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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 installed IBM API Connect versionAccess the API Connect management console or use the API Connect CLI tool (apic) to query the version: 'apic version' or check the product information in the management UI under About/Help sections. Alternatively, check the installation manifests or container labels if running in a containerized environment.Affected if The installed version falls within 2018.1.0 through 2018.4.1.3 (inclusive).
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Locate vulnerable endpoint URIsIdentify the API Connect management and analytics endpoints. The vulnerability affects specific URIs that expose system specification information. Common paths include management API endpoints under /api/ or /apic/ directories.Affected if The URIs returning system information (machine ID, system UUID, filesystem paths, network interface names, MAC addresses) are accessible on the network.
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Test unauthenticated access to system info endpointsUse a web browser or curl command to attempt access to suspected endpoints without providing credentials. Try common paths like /api/system/info, /api/v1/machine-id, or similar paths that might expose system metadata. Inspect HTTP response headers and body for sensitive information.Affected if Sensitive system specification data (machine ID, UUID, filesystem paths, network interface names, MAC addresses) is returned without authentication.
A defender is affected if their IBM API Connect version is between 2018.1.0 and 2018.4.1.3 and the vulnerable URIs exposing system information are reachable from an untrusted network segment without authentication.
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 fix for CVE-2019-4051 (consult IBM's official patch bulletin for version-specific updates), or implement network-level access controls to restrict access to the vulnerable URIs until patching can be completed.
- Consultation3.0 h
- Implementation6.0 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 $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4051 — 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-2019-4051 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