CVE-2017-14000
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 · uneditedAn Improper Authentication issue was discovered in Ctek SkyRouter Series 4200 and 4400, all versions prior to V6.00.11. By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access the application without authenticating.
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 Ctek SkyRouter 4200 and 4400 web interface has an authentication bypass vulnerability where a specific URL can be accessed without requiring valid credentials, allowing unauthenticated attackers to access the device's administrative functions.
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<= 6.00.05<= 6.00.05CVSS 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
- Low
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
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 the device modelAccess the device's web interface or administrative console and locate the model information. Look for 'SkyRouter Z4200' or 'SkyRouter Z4400' in the device status or system information page.Affected if The device is a Ctek SkyRouter Z4200 or Z4400 model.
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Check the firmware versionIn the device's web interface, navigate to the system settings, status, or about page to find the firmware version. Compare it against the affected range.Affected if The firmware version is 6.00.05 or earlier.
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Verify the web interface is enabledConfirm that the web-based administrative interface is accessible and running on the device. This is typically accessed via HTTP/HTTPS on the device's LAN or WAN IP.Affected if The web interface is active and reachable.
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Confirm authentication is requiredAttempt to access administrative functions without providing credentials. The CVE indicates a specific URL can bypass authentication. Since the exact URL is not publicly disclosed, test by accessing common admin paths (such as /admin, /cgi-bin/, or device-specific configuration pages) without logging in.Affected if Administrative pages or device configuration can be accessed without valid credentials.
A user is affected if they have a SkyRouter Z4200 or Z4400 device running firmware version 6.00.05 or earlier with the web interface enabled, and authentication can be bypassed for administrative functions.
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 · scopedUpdate to firmware version V6.00.11 or later. If patching is not immediately feasible, restrict web interface access to trusted networks via firewall rules or disable remote web management.
V6.00.11 or later
- Identify the current firmware version of the Skyrouter Z4200 or Z4400 device
- Access the device's web administration interface
- Navigate to the firmware update or system settings section
- Obtain the firmware version V6.00.11 or later from the vendor (Ctek)
- Upload and apply the firmware update following the vendor's upgrade procedure
- After the upgrade, verify the new firmware version is installed
- Test the authentication mechanism to confirm the vulnerability is remediated
- Ensure the specific URL mentioned in the CVE is no longer accessible without authentication
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-14000 — 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-2017-14000 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
- No spam, self-promotion, credentials, or personal data