CVE-2012-6068
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 Runtime Toolkit in CODESYS Runtime System 2.3.x and 2.4.x does not require authentication, which allows remote attackers to execute commands via the command-line interface in the TCP listener service or transfer files via requests to the TCP listener service.
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 confidenceThe CODESYS Runtime Toolkit in versions 2.3.x and 2.4.x has no authentication requirement on its TCP listener service, enabling unauthenticated remote attackers to execute arbitrary OS commands via the CLI or perform file transfers by sending raw requests to the exposed TCP port.
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= 2.3.9.8= 2.3.9.35= 2.3.9.36= 2.3.9.37= 2.4.0CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/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 if CODESYS Runtime is installedCheck running processes or installed services for 'CODESYS' or 'CoDeSys' names. On Windows, use 'sc query' or check Program Files for 3S - Smart Software Solutions GmbH folder. On Linux, check for /usr/local/CODESYS or similar installation directories.Affected if CODESYS Runtime software is present on the system
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Determine the installed CODESYS versionCheck the version of the installed CODESYS Runtime. On Windows, right-click the CODESYS executable in the installation directory and view Properties > Details, or check 'Add/Remove Programs'. On Linux, check the version string in the binary or startup scripts.Affected if The version matches 2.3.9.8, 2.3.9.35, 2.3.9.36, 2.3.9.37, or 2.4.0, or falls within the 2.3.x or 2.4.x branch
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Check if TCP listener service is enabled and runningIdentify the CODESYS TCP listener port (commonly 1200 or 1217). Use 'netstat -an | grep 1200' or 'netstat -an | grep 1217' to see if the service is listening. Check if the process is bound to 0.0.0.0 (all interfaces) rather than localhost only.Affected if The CODESYS TCP listener port is open and listening on network interfaces accessible to untrusted networks
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Verify network exposure of the serviceReview firewall rules and network configuration to determine if the CODESYS TCP port is accessible from untrusted network segments. Check if the service is exposed to the internet or to less-trusted internal network zones.Affected if The TCP listener port is accessible from network segments that are not restricted to trusted users or systems only
A user is affected if CODESYS Runtime versions 2.3.x or 2.4.x is installed AND the TCP listener service is running and accessible from untrusted network paths, since the vulnerability allows unauthenticated remote command execution.
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 dataImmediately restrict network access to the CODESYS TCP listener service to trusted IPs only, or isolate the service behind a firewall; if a patched version is available from the vendor, upgrade accordingly.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2012-6068 — 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-2012-6068 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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