CVE-2022-30309
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 · uneditedIn Festo Controller CECC-X-M1 product family in multiple versions, the http-endpoint "cecc-x-web-viewer-request-off" POST request doesn’t check for port syntax. This can result in unauthorized execution of system commands with root privileges due to improper access control command injection.
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 confidenceThe Festo CECC-X-M1 controller has a command injection vulnerability in the 'cecc-x-web-viewer-request-off' HTTP endpoint. The POST request handler fails to validate input syntax (specifically port-related input), allowing attackers to inject and execute arbitrary system commands with root privileges due to improper access controls.
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<= 3.8.14= 4.0.14<= 3.8.14= 4.0.14<= 3.8.14= 4.0.14<= 3.8.14<= 3.8.14<= 3.8.14<= 3.8.14<= 3.8.14CVSS 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.
-
Identify the Festo controller model and firmware versionAccess the controller's web interface or use the manufacturer's diagnostic tool to retrieve the firmware version. The version is typically displayed in the system information or status page of the web management interface.Affected if The firmware version is <= 3.8.14 or exactly 4.0.14 for any of the affected variants (Cecc X M1, Cecc X M1 Mv, Cecc X M1 Mv S1, Cecc X M1 Ys L1, Cecc X M1 Ys L2, Cecc X M1 Y Yjkp, or Servo Press Kit Yjkp).
-
Verify the web management interface is enabled and reachableAttempt to access the controller's web interface over HTTP/HTTPS using the device's IP address. Check if the login page or status page loads successfully.Affected if The web interface is accessible on the network, indicating the attack surface is present.
-
Confirm the vulnerable endpoint existsSend a POST request to the '/cecc-x-web-viewer-request-off' endpoint. This can be done using a tool like curl: curl -X POST http://<device_ip>/cecc-x-web-viewer-request-off -d 'param=test'. Observe if the endpoint responds or accepts the request.Affected if The endpoint responds to POST requests, indicating it is active and potentially vulnerable to command injection.
-
Check for network exposure of the management interfaceReview firewall rules, network configurations, and access control lists to determine if the controller's web management interface is exposed to untrusted networks or the internet.Affected if The web interface is accessible from untrusted networks or directly from the internet, increasing the likelihood of exploitation.
You are affected if your Festo CECC-X-M1 controller runs firmware version <= 3.8.14 or exactly 4.0.14, has the web interface enabled, and the vulnerable '/cecc-x-web-viewer-request-off' endpoint is 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.
dbcve · scopedImplement input validation and sanitization on all HTTP endpoints, apply vendor patches when available, and restrict network access to the management interface using network segmentation or firewall rules as a compensating control until a fix is deployed.
Firmware version 4.0.15 or later / latest stable Festo firmware for CECC-X-M1 family
- 1. Identify the exact Festo Controller CECC-X-M1 model and current firmware version from the device interface or documentation
- 2. Access the Festo support portal or contact Festo directly to obtain firmware version 4.0.15 or later (or the latest stable release)
- 3. Review all release notes and security advisories for the target firmware version
- 4. Create a backup of the current device configuration if supported
- 5. Schedule a maintenance window as firmware updates may require downtime
- 6. Upload and install the new firmware following Festo's official firmware update procedure
- 7. After update, verify the device is operational and the vulnerable endpoint no longer accepts unauthorized commands
- 8. Confirm the firmware version has been updated successfully
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2022-30309 — 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-2022-30309 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