CVE-2021-35203
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 · uneditedNETSCOUT Systems nGeniusONE 6.3.0 build 1196 allows Arbitrary File Read operations via the FDSQueryService endpoint.
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 confidencenGeniusONE 6.3.0 build 1196 contains an arbitrary file read vulnerability in the FDSQueryService endpoint. An attacker can exploit this to read sensitive files from the underlying filesystem, potentially exposing configuration files, credentials, or other system data.
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= 6.3.0CVSS 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
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/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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Confirm nGeniusONE installationLocate the nGeniusONE installation directory, typically under C:\Program Files\NETSCOUT\nGeniusONE or /opt/ngeniusone, and verify the software is present.Affected if The nGeniusONE software is found on the system.
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Identify installed versionCheck the version information in the nGeniusONE installation by examining version.info, about dialog in the management console, or using the nGeniusONE command-line version query if available.Affected if The installed version is exactly 6.3.0 build 1196.
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Verify FDSQueryService endpoint accessibilityAttempt to access the FDSQueryService endpoint via HTTP/HTTPS on the nGeniusONE management interface port (typically 443 or 8080). The endpoint path is typically /FDSQueryService or similar. Use a web browser or curl to test connectivity.Affected if The FDSQueryService endpoint responds and is reachable from the network.
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Review access logs for suspicious file read patternsExamine nGeniusONE server logs, typically found in the logs directory under the installation path, for unusual or unauthorized requests to FDSQueryService that may indicate file path traversal attempts.Affected if Logs show requests to FDSQueryService with path traversal patterns (e.g., ../../) or access to sensitive system files.
You are affected if nGeniusONE version 6.3.0 build 1196 is installed and the FDSQueryService endpoint is network-accessible.
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 vendor-supplied patch for CVE-2021-35203 or upgrade to a patched version. If no patch is immediately available, restrict network access to the FDSQueryService endpoint and implement additional authentication controls.
- Consultation2.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-35203 — 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-2021-35203 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