CVE-2019-4728
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 · uneditedIBM Sterling B2B Integrator Standard Edition 5.2.0.0 through 5.2.6.5_2, 6.0.0.0 through 6.0.3.2, and 6.1.0.0 could allow a remote attacker to execute arbitrary code on the system, caused by the deserialization of untrusted data. By sending specially crafted request, an attacker could exploit this vulnerability to execute arbitrary code with SYSTEM privileges. IBM X-Force ID: 172452.
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 confidenceIBM Sterling B2B Integrator contains a deserialization vulnerability where untrusted data is deserialized without proper validation. An attacker can send specially crafted requests to exploit this flaw and achieve remote code execution with SYSTEM-level privileges.
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>= 5.2.0.0, <= 5.2.6.5_2>= 6.0.0.0, <= 6.0.3.2= 6.1.0.0CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 installed IBM Sterling B2B Integrator versionLocate the product version through the admin console, installation directory metadata, or version check utilities provided with the product. Common locations include version files in the installation directory or the system information page in the web-based admin interface.Affected if The installed version falls within 5.2.0.0 to 5.2.6.5_2, 6.0.0.0 to 6.0.3.2, or equals 6.1.0.0
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Verify if the application is running and accessible over the networkConfirm the Sterling B2B Integrator web interfaces or API endpoints are reachable. Check network listeners, typically ports 8443, 8444, or custom ports configured during installation.Affected if The Sterling B2B Integrator HTTP/HTTPS services are exposed and accepting connections from network locations where attackers could send malicious requests
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Confirm the deserialization endpoints are activeIdentify if the application exposes SOAP, REST, or other API interfaces that process serialized data. Review the deployed web services or custom adapters that handle incoming data payloads.Affected if The application accepts and processes serialized data through accessible endpoints without additional validation layers
The environment is affected if the installed IBM Sterling B2B Integrator version is 5.2.0.0 through 5.2.6.5_2, 6.0.0.0 through 6.0.3.2, or exactly 6.1.0.0 AND the application services are network-accessible to process incoming requests.
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 IBM's provided patches to upgrade to a fixed version (5.2.6.5_3, 6.0.3.3, or 6.1.0.1 and later). Until patching is feasible, restrict network access to the Sterling B2B Integrator interfaces and monitor for suspicious deserialization patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing16.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-4728 — 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-2019-4728 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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- Version or environment caveats, and links to real fixes
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