CVE-2012-3003
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 · uneditedOpen redirect vulnerability in an unspecified web application in Siemens WinCC 7.0 SP3 before Update 2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a URL in a GET request.
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 confidenceOpen redirect vulnerability in Siemens WinCC 7.0 SP3 web interface before Update 2 allows remote attackers to manipulate GET request parameters to redirect users to arbitrary external websites, facilitating phishing attacks by abusing user trust in the legitimate WinCC application.
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= 7.0CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:M/Au:N/C:P/I:P/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 installed WinCC versionCheck the Siemens WinCC installation for its exact version number (7.0) and service pack level (SP3), then determine if Update 2 has been appliedAffected if The version is Siemens WinCC 7.0 SP3 without Update 2 applied (versions before the patch)
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Verify web interface is enabledConfirm that the WinCC web interface component is installed and running, as the vulnerability resides in this web-facing componentAffected if The WinCC web interface is exposed and accessible to users or network attackers
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Inspect GET parameter handlingTest the web interface by manipulating URL parameters (such as redirect or URL parameters) to observe if the application allows arbitrary external URL redirectionAffected if The application accepts and follows redirects to external domains based on user-controlled GET parameters
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Check for URL validation configurationReview the WinCC web application configuration or proxy settings for any URL validation or allowlisting mechanisms that may mitigate open redirect risksAffected if No strict URL validation or allowlisting is configured, allowing arbitrary external redirects
A user is affected if they are running Siemens WinCC 7.0 SP3 without Update 2 and have the web interface enabled, as the vulnerability allows attackers to craft malicious URLs that redirect users to external phishing sites.
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 Siemens WinCC 7.0 SP3 Update 2 or later; alternatively, implement strict URL validation and allowlisting on the web application to prevent untrusted redirects.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2012-3003 — 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-2012-3003 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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