CVE-2023-3329
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 · uneditedSpiderControl SCADA Webserver versions 2.08 and prior are vulnerable to path traversal. An attacker with administrative privileges could overwrite files on the webserver using the HMI's upload file feature. This could create size zero files anywhere on the webserver, potentially overwriting system files and creating a denial-of-service condition.
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 confidenceSpiderControl SCADA Webserver versions 2.08 and prior contains a path traversal vulnerability in the HMI upload file feature. An authenticated attacker with administrative privileges can manipulate file upload paths to create zero-byte files outside the intended webroot directory, potentially overwriting system files and causing denial of service.
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<= 2.08CVSS 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
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/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 SpiderControl SCADA Webserver versionLocate the SpiderControl installation directory and check the version information in the application binaries, about dialog, or version file. Common locations include the program files folder or the webserver root directory. Compare the found version against the affected range (<=2.08).Affected if The installed version is 2.08 or lower, indicating the vulnerable version is present.
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Verify HMI upload feature is accessibleCheck the SpiderControl web server configuration files (typically in the conf or config folder) for the HMI file upload module or endpoint. Look for settings related to 'upload', 'HMI', or file transfer functionality. Confirm the feature is not disabled through configuration.Affected if The HMI upload feature is enabled and accessible in the web server configuration.
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Confirm administrative authentication is configuredReview the SpiderControl user authentication configuration to determine which users possess administrative privileges. Check the user database, configuration files, or administrative interface for accounts with elevated rights.Affected if Administrative accounts exist and are accessible, providing the privilege level required to exploit the vulnerability.
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Inspect filesystem for unexpected zero-byte filesScan the filesystem, particularly outside the expected webroot directory (such as system directories, configuration folders, and root drive locations), for newly created zero-byte files. Use file system monitoring tools or manual inspection to identify suspicious file creations.Affected if Zero-byte files are found outside the intended webroot directory, indicating the vulnerability may have been exploited.
You are affected if SpiderControl SCADA Webserver version 2.08 or lower is installed, the HMI upload feature is enabled, administrative users exist, and unexplained zero-byte files appear outside the webroot.
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 a version beyond 2.08 when available from SpiderControl. Until patched, restrict administrative access to trusted users only and monitor for anomalous file creation events on the server filesystem.
- Consultation2.0 h
- Implementation3.0 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-2023-3329 — 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-2023-3329 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
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