CVE-2017-12698
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 · uneditedAn Improper Authentication issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Specially crafted requests allow a possible authentication bypass that could allow remote code execution.
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 confidenceAdvantech WebAccess versions prior to V8.2_20170817 contain an improper authentication vulnerability that allows specially crafted requests to bypass authentication checks, potentially enabling remote code execution.
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<= 8.2CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/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 WebAccess versionLocate the Advantech WebAccess installation and retrieve the version number from the application, typically found in the About section, installation directory, or service informationAffected if The version displayed is 8.2 or any version prior to V8.2_20170817
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Verify version against affected rangeCompare your installed version number to the known affected range: versions 8.2 and earlier are vulnerable, versions V8.2_20170817 or later are patchedAffected if The installed version is 8.2 or lower and predates the August 2017 patch release
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Confirm web interface accessibilityCheck if the Advantech WebAccess web portal is exposed and reachable on the networkAffected if The web interface is accessible and the version has not been confirmed as patched
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Review authentication configurationIf accessible, examine the authentication settings or logs for the webAccess service to confirm authentication mechanisms are in placeAffected if Authentication configuration cannot be verified or the service is using default vulnerable settings
If the installed Advantech WebAccess version is 8.2 or earlier (prior to V8.2_20170817), the environment is affected by the authentication bypass vulnerability.
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.
dbcve · scopedUpgrade Advantech WebAccess to version V8.2_20170817 or later to patch the authentication bypass vulnerability.
V8.2_20170817 or later
- Identify the current version of Advantech WebAccess installed
- Back up all configurations, project files, and databases before upgrading
- Download WebAccess version V8.2_20170817 or later from the official Advantech website or trusted distribution channel
- Stop all WebAccess services and related processes
- Install the upgrade following Advantech's official upgrade documentation
- Start WebAccess services and verify the application is running correctly
- Test that authentication is functioning properly and the authentication bypass vulnerability is resolved
- Verify that no unauthorized access or code execution has occurred
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-12698 — 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-2017-12698 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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