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Controller Cecc X M1 FirmwareOperating system · Festo

CVE-2022-30311

CRITICAL · 9.8 CVSS v3.1 Published 2022-06-13
Fix available
A fix is available. Upgrade to after 3.8.14 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
In Festo Controller CECC-X-M1 product family in multiple versions, the http-endpoint "cecc-x-refresh-request" 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 · high confidence

The Festo Controller CECC-X-M1 has a command injection vulnerability in the 'cecc-x-refresh-request' HTTP POST endpoint. The endpoint fails to validate/check port syntax in user input, allowing attackers to inject and execute arbitrary system commands with root privileges due to improper access control.

MitigationImplement strict input validation and sanitization on the HTTP endpoint to reject malformed port syntax and command injection payloads. Apply vendor patches or firmware updates for the CECC-X-M1 product family.

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
Controller Cecc X M1 FirmwareOperating system
Affected:<= 3.8.14= 4.0.14
Controller Cecc X M1 Mv FirmwareOperating system
Affected:<= 3.8.14= 4.0.14
Controller Cecc X M1 Mv S1 FirmwareOperating system
Affected:<= 3.8.14= 4.0.14
Controller Cecc X M1 Ys L1 FirmwareOperating system
Affected:<= 3.8.14
Controller Cecc X M1 Ys L2 FirmwareOperating system
Affected:<= 3.8.14
Controller Cecc X M1 Y Yjkp FirmwareOperating system
Affected:<= 3.8.14
Servo Press Kit Yjkp FirmwareOperating system
Affected:<= 3.8.14
Servo Press Kit Yjkp FirmwareOperating system
Affected:<= 3.8.14

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Festo controller model
    Locate the device label or access the web interface to confirm the model is 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 a Festo Servo Press Kit Yjkp.
    Affected if The device is any of these specific models.
  2. Check the firmware version
    Access the device web interface or use the vendor management interface to view the firmware version. Compare against the affected ranges: <= 3.8.14 or = 4.0.14.
    Affected if The installed firmware version is 3.8.14 or earlier, or exactly 4.0.14.
  3. Confirm the HTTP web interface is enabled
    Attempt to access the device over HTTP/HTTPS on the expected management port (typically 80 or 443). Check if the web service responds.
    Affected if The HTTP/HTTPS management interface is accessible on the network.
  4. Verify the vulnerable endpoint exists
    Send a POST request to the '/cecc-x-refresh-request' endpoint (or check if it returns a response). This endpoint is required for exploitation.
    Affected if The 'cecc-x-refresh-request' endpoint is present and responds to requests.

You are affected if the device is a Festo CECC-X-M1 variant with firmware version <= 3.8.14 or exactly 4.0.14, and the HTTP management interface with the vulnerable endpoint is accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to a release after 3.8.14
Interim mitigation

Implement strict input validation and sanitization on the HTTP endpoint to reject malformed port syntax and command injection payloads. Apply vendor patches or firmware updates for the CECC-X-M1 product family.

Recommended fix Moderate confidence

Firmware version > 4.0.14 (contact Festo for exact fixed release)

  1. Contact Festo support or visit the official Festo website to obtain the latest firmware version for your specific Controller CECC-X-M1 variant
  2. Verify the current firmware version on affected devices before upgrading
  3. Download the firmware update from a verified Festo source
  4. Follow Festo's official firmware upgrade procedure, typically via the device's web interface or recovery mode
  5. After upgrading, verify the firmware version has been updated successfully
  6. Restrict network access to the device's web interface to trusted IP addresses only
  7. If upgrade is not immediately possible, implement network segmentation to isolate the device from untrusted networks
Caveat Review Festo release notes for any configuration or compatibility changes between current and new firmware versions

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Controller Cecc X M1 Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA8.0 h
44.0 hours of engineering $7,720
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-30311 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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