CVE-2024-43683
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 · uneditedURL Redirection to Untrusted Site ('Open Redirect') vulnerability in Microchip TimeProvider 4100 allows XSS Through HTTP Headers.This issue affects TimeProvider 4100: from 1.0.
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 confidenceAn open redirect vulnerability in Microchip TimeProvider 4100 allows attackers to manipulate HTTP headers to redirect users to malicious sites or inject malicious content via cross-site scripting (XSS). The vulnerability affects version 1.0 and onward of the TimeProvider 4100 network time server device.
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>= 1.0, < 2.4.7CVSS 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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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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Determine firmware versionAccess the TimeProvider 4100 web management interface and navigate to System or About section to view the firmware version. Alternatively, use SNMP or CLI commands such as 'show version' if available.Affected if The installed firmware version is 1.0 or higher but lower than 2.4.7
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Confirm web interface is enabledVerify that the HTTP/HTTPS web management interface is accessible on the device. This vulnerability is exploited through the web server's handling of HTTP headers.Affected if The web interface is exposed and the firmware version falls within the affected range (>=1.0, <2.4.7)
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Review redirect parametersInspect any web interface pages or API endpoints that accept URL parameters for redirection (for example, 'redirect=', 'url=', or 'next=' parameters). Attempt to supply an external domain as the parameter value and observe if a redirect occurs.Affected if The device accepts unvalidated input in redirect-related parameters and runs a firmware version in the affected range
The environment is affected if the TimeProvider 4100 firmware version is 1.0 or higher but lower than 2.4.7 and the web management interface 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 · scoped2.4.7
Validate and sanitize all redirect URLs and HTTP header values server-side to prevent untrusted input from controlling redirection targets. Contact Microchip for firmware patches and apply available updates.
Firmware version 2.4.7 or later
- Contact Microchip to obtain the firmware update for TimeProvider 4100 (version 2.4.7 or later)
- Review Microchip's official firmware upgrade documentation for TimeProvider 4100
- Apply the firmware update following Microchip's standard upgrade procedure
- Verify the firmware has been successfully updated to version 2.4.7 or later
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2024-43683 — 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-2024-43683 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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