CVE-2012-2596
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 · uneditedThe XPath functionality in unspecified web applications in Siemens WinCC 7.0 SP3 before Update 2 does not properly handle special characters in parameters, which allows remote authenticated users to read or modify settings via a crafted URL, related to an "XML injection" attack.
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 confidenceSiemens WinCC 7.0 SP3 contains an XML injection vulnerability in its XPath web application functionality. The XPath implementation fails to properly sanitize special characters in URL parameters, allowing authenticated remote attackers to manipulate XML queries and potentially read or modify application settings.
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
- Low
- Authentication
- Single
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:L/Au:S/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.
-
Verify Siemens WinCC installation and versionLocate the WinCC installation directory and check the version information, typically found in the program's About or version details. Common locations include C:\Program Files\Siemens\WinCC or C:\Siemens\WinCC.Affected if The installed version is exactly 7.0 (no service pack or update applied)
-
Confirm WinCC service pack and update levelCheck if WinCC 7.0 SP3 (Service Pack 3) is installed by examining the WinCC Explorer or Control Panel applet for the installed updates and service packs.Affected if WinCC 7.0 SP3 is present without Update 2 or later applied
-
Identify if XPath web application functionality is enabledCheck the WinCC configuration for the Web Navigator or WebUX component settings. Look for XPath query functionality in the web application configuration files or the WinCC Web Navigator service status.Affected if The WinCC web application with XPath support is enabled and running
-
Determine if web interface is accessible remotelyReview network configuration and firewall settings to confirm whether the WinCC web server port (typically port 80 or 443) is exposed to network access rather than localhost only.Affected if The WinCC web interface is accessible from network hosts
A user is affected if they have Siemens WinCC version 7.0 SP3 without Update 2 applied, with the XPath web application functionality enabled and 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 Siemens WinCC 7.0 SP3 Update 2 or later, which addresses the improper handling of special characters in XPath parameters. Additionally, implement strict input validation on all user-supplied parameters and restrict web application access to authorized personnel only.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-2596 — 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-2012-2596 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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
- No spam, self-promotion, credentials, or personal data