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Crestron Toolbox Protocol FirmwareOperating system · Crestron

CVE-2018-11228

CRITICAL · 9.8 CVSS v3.0 Published 2018-06-08
Fix available
A fix is available. Upgrade to 2.001.0037.001 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
Crestron TSW-1060, TSW-760, TSW-560, TSW-1060-NC, TSW-760-NC, and TSW-560-NC devices before 2.001.0037.001 allow unauthenticated remote code execution via a Bash shell service in Crestron Toolbox Protocol (CTP).

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

Crestron TSW series touch panel devices (TSW-1060, TSW-760, TSW-560, and NC variants) contain an unauthenticated remote code execution vulnerability in the Bash shell service implementation of the Crestron Toolbox Protocol (CTP). An attacker can send specially crafted CTP packets to execute arbitrary shell commands without any authentication, achieving full device compromise.

MitigationApply vendor firmware version 2.001.0037.001 or later to all affected devices. If immediate patching is not feasible, isolate affected devices on a restricted network segment and block CTP port access from untrusted networks.

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
Crestron Toolbox Protocol FirmwareOperating system
Affected:< 2.001.0037.001

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:3.0/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 Crestron TSW series devices on the network
    Inventory network devices and locate any Crestron TSW-1060, TSW-760, TSW-560, or NC model touch panels. These can often be discovered via network scanning or by reviewing device DHCP leases and MAC vendor prefixes (Crestron OUI).
    Affected if Any Crestron TSW series touch panel (TSW-1060, TSW-760, TSW-560, or NC variants) exists on the network.
  2. Determine Crestron Toolbox Protocol firmware version
    Access the device web interface or use Crestron Toolbox software to retrieve the firmware version. The version is displayed in the device info or system status page. Compare the installed version against the affected range: versions prior to 2.001.0037.001 are vulnerable.
    Affected if The device runs Crestron Toolbox Protocol firmware version lower than 2.001.0037.001.
  3. Verify CTP Bash shell service is enabled
    Check the device configuration via the web interface or Toolbox software for the Crestron Toolbox Protocol (CTP) service settings. Confirm whether the Bash shell service feature within CTP is enabled. This is typically found under protocol settings or shell access configuration.
    Affected if The Bash shell service component of Crestron Toolbox Protocol is enabled on the device.
  4. Assess network exposure of CTP service
    Scan the network for open ports associated with Crestron Toolbox Protocol (typically port 5017 or as configured). Determine if these ports are accessible from untrusted network segments or the internet by reviewing firewall rules and network ACLs.
    Affected if The CTP port is exposed to untrusted networks or accessible without network segmentation.

You are affected if you have any Crestron TSW series devices (TSW-1060, TSW-760, TSW-560, or NC) running Crestron Toolbox Protocol firmware versions earlier than 2.001.0037.001 with the Bash shell service enabled and the CTP port exposed to untrusted networks.

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 2.001.0037.001 or later
Fixed in 2.001.0037.001
Interim mitigation

Apply vendor firmware version 2.001.0037.001 or later to all affected devices. If immediate patching is not feasible, isolate affected devices on a restricted network segment and block CTP port access from untrusted networks.

Recommended fix High confidence

2.001.0037.001

  1. 1. Identify all affected Crestron device models (TSW-1060, TSW-760, TSW-560, TSW-1060-NC, TSW-760-NC, TSW-560-NC) in your environment
  2. 2. Check the current firmware version on each device via the Crestron Toolbox or device web interface
  3. 3. Download the firmware version 2.001.0037.001 or later from the official Crestron support portal (support.crestron.com)
  4. 4. Upload the new firmware to each affected device using the Crestron Toolbox software
  5. 5. Verify the firmware upgrade was successful by confirming the new version number
  6. 6. Verify the vulnerability is no longer present by confirming the Bash shell service is no longer exposed via Crestron Toolbox Protocol

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

Fix this in Crestron Toolbox Protocol Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA2.0 h
20.0 hours of engineering $3,500
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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-2018-11228 in production — separate from our analysis above.

No notes yet

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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