CVE-2019-8993
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 · uneditedThe administrative web server component of TIBCO Software Inc.'s TIBCO ActiveMatrix BPM, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric, TIBCO ActiveMatrix Policy Director, TIBCO ActiveMatrix Service Bus, TIBCO ActiveMatrix Service Grid, TIBCO ActiveMatrix Service Grid Distribution for TIBCO Silver Fabric, TIBCO Silver Fabric Enabler for ActiveMatrix BPM, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid contains a vulnerability that could theoretically allow an unauthenticated user to download a file with credentials information. Affected releases are TIBCO Software Inc.'s TIBCO ActiveMatrix BPM: versions up to and including 4.2.0, TIBCO ActiveMatrix BPM Distribution for TIBCO Silver Fabric: versions up to and including 4.2.0, TIBCO ActiveMatrix Policy Director: versions up to and including 1.1.0, TIBCO ActiveMatrix Service Bus: versions up to and including 3.3.0, TIBCO ActiveMatrix Service Grid: versions up to and including 3.3.1, TIBCO ActiveMatrix Service Grid Distribution for TIBCO Silver Fabric: versions up to and including 3.3.0, TIBCO Silver Fabric Enabler for ActiveMatrix BPM: versions up to and including 1.4.1, and TIBCO Silver Fabric Enabler for ActiveMatrix Service Grid: versions up to and including 1.3.1.
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 confidenceA critical authentication bypass vulnerability in the administrative web server component of multiple TIBCO ActiveMatrix products allows unauthenticated users to download files containing credential information. The flaw exists in the web-based administration interface and can be exploited without any authentication credentials.
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<= 4.2.0<= 1.1.0<= 3.3.0<= 3.3.0<= 3.3.1<= 1.3.1<= 1.4.1CVSS 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 installed TIBCO ActiveMatrix productLocate TIBCO installation directories or check for TIBCO processes running on the system. Common locations include /opt/tibco or C:\tibco on Windows. Look for product-specific directories such as amx_bpm, amx_pdp, amx_sb, amx_sg, or silver-fabric-enabler.Affected if Any of the following products are installed: Activematrix Bpm, Activematrix Policy Director, Activematrix Service Bus, Activematrix Service Grid, or Silver Fabric Enabler.
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Determine installed product versionCheck version information in product-specific configuration files, About pages, or using TIBCO command-line utilities if available. Consult TIBCO documentation for version retrieval specific to each product.Affected if The installed version falls within or below these ranges: Bpm <= 4.2.0, Policy Director <= 1.1.0, Service Bus <= 3.3.0, Service Grid <= 3.3.0 or <= 3.3.1, Silver Fabric Enabler <= 1.3.1 or <= 1.4.1.
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Verify administrative web interface is accessibleIdentify the port and URL for the administrative web console. This is typically accessible on ports such as 8080, 8443, or custom ports configured during installation. Attempt to access the admin interface without credentials to confirm it is exposed.Affected if The administrative web interface responds to requests without requiring authentication credentials.
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Check network exposure of admin interfaceReview firewall rules, network configuration, and listening services to determine if the administrative web port is bound to publicly accessible network interfaces versus localhost only.Affected if The admin web interface is bound to a routable IP address and accessible from untrusted networks rather than being restricted to localhost or trusted internal networks only.
You are affected if a TIBCO ActiveMatrix product (Bpm, Policy Director, Service Bus, Service Grid, or Silver Fabric Enabler) is installed with a version at or below the affected ranges AND the administrative web interface is network-accessible 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 vendor-supplied patches or updates to the affected TIBCO ActiveMatrix products. If patches are unavailable, restrict network access to administrative web interfaces using network segmentation and firewall rules to limit exposure to trusted networks only.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-8993 — 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-2019-8993 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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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.
- 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