CVE-2019-18334
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 · uneditedA vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with network access to the Application Server could be able to enumerate valid user names by sending specifically crafted packets to 8090/tcp. Please note that an attacker needs to have network access to the Application Server in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
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 confidenceUser enumeration vulnerability in SPPA-T3000 Application Server allows attackers with network access to port 8090/tcp to discover valid usernames by analyzing differences in server responses to specifically crafted authentication packets.
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< r8.2= r8.2CVSS 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:3.1/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 SPPA-T3000 Application Server versionCheck the installed version of SPPA-T3000 Application Server through the product's built-in version information, typically accessible via the management interface or by querying the application server directlyAffected if The installed version is r8.2 or any version prior to r8.2 (versions < r8.2)
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Verify port 8090/tcp is listeningRun a port scan or use netstat/ss commands to confirm that port 8090/tcp is open and listening on the SPPA-T3000 Application ServerAffected if Port 8090/tcp is open and accepting connections
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Check network exposure of port 8090Review firewall rules, network configurations, and ACLs to determine if port 8090/tcp is accessible from network segments outside the trusted internal networkAffected if Port 8090/tcp is reachable from untrusted networks or external IP addresses
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Analyze authentication response patternsSend specially crafted authentication packets to port 8090/tcp and compare server responses for different usernames - look for differences in error messages, response times, or HTTP status codes between valid and invalid usernamesAffected if The server returns distinguishable responses that differ between valid and invalid usernames
You are affected if SPPA-T3000 Application Server version is r8.2 or earlier AND port 8090/tcp is accessible, allowing an attacker to enumerate valid usernames via differing authentication responses.
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 dataUpgrade to SPPA-T3000 Service Pack R8.2 SP2 or later; until then, restrict network access to port 8090/tcp and monitor for anomalous authentication patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-18334 — 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-2019-18334 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
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