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Timeprovider 4100 FirmwareOperating system · Microchip

CVE-2024-43684

HIGH · 8.8 CVSS v3.1 Published 2024-10-04
Fix available
A fix is available. Upgrade to 2.4.7 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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
Cross-Site Request Forgery (CSRF) vulnerability in Microchip TimeProvider 4100 allows Cross Site Request Forgery, Cross-Site Scripting (XSS).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 confidence

This is a combined CSRF and XSS vulnerability in the Microchip TimeProvider 4100 network time server. CSRF allows attackers to force authenticated users to perform unintended actions, while XSS enables injection of malicious scripts into the web interface, potentially leading to session hijacking or further attacks.

MitigationApply vendor firmware updates when available; until then, implement anti-CSRF tokens in any custom web interfaces, validate/sanitize all inputs, and consider deploying a WAF to block malicious requests.

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
Timeprovider 4100 FirmwareOperating system
Affected:>= 1.0, < 2.4.7

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 device model
    Access the device's web interface or CLI and locate the product model information. Look for 'TimeProvider 4100' or 'Microchip TimeProvider' in the system information or status pages.
    Affected if The device is not a Microchip TimeProvider 4100, then this CVE does not apply.
  2. Determine the installed firmware version
    Locate the firmware version in the device's web interface (typically under System, Status, or About sections) or via CLI command such as 'show version' or 'system info'. Note the exact version number.
    Affected if The firmware version cannot be determined, making it unclear whether the device is affected.
  3. Compare version against the affected range
    Compare your installed firmware version number to the affected range: versions 1.0 and above, but below version 2.4.7. Any version starting with 1.x, 2.0, 2.1, 2.2, 2.3, or 2.4.x (where x < 7) is within the affected range.
    Affected if Your installed version is 1.0 or higher but lower than 2.4.7, meaning the device is vulnerable.
  4. Verify web interface accessibility
    Confirm whether the device's web management interface is accessible from network locations where untrusted users could potentially send requests. Check if the interface is exposed to the internet or accessible from less-trusted network segments.
    Affected if The web interface is accessible to untrusted users, the CSRF and XSS flaws could be exploited by attackers.

You are affected if you have a Microchip TimeProvider 4100 with firmware version 1.0 or higher but lower than 2.4.7, and its web interface 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 2.4.7 or later
Fixed in 2.4.7
Interim mitigation

Apply vendor firmware updates when available; until then, implement anti-CSRF tokens in any custom web interfaces, validate/sanitize all inputs, and consider deploying a WAF to block malicious requests.

Recommended fix Moderate confidence

TimeProvider 4100 Firmware version 2.4.7 or later

  1. 1. Backup current TimeProvider 4100 configuration before initiating firmware upgrade
  2. 2. Download TimeProvider 4100 firmware version 2.4.7 or later from the official Microchip support website
  3. 3. Access the TimeProvider 4100 web management interface using an administrative account
  4. 4. Navigate to the Firmware Upgrade or System Maintenance section
  5. 5. Upload the downloaded firmware file (2.4.7 or later)
  6. 6. Confirm the upgrade and allow the device to complete the update process
  7. 7. After reboot, verify the firmware version reflects 2.4.7 or higher
  8. 8. Verify the web interface is accessible and all services are operational

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

Fix this in Timeprovider 4100 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
Get the upgrade done

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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-2024-43684 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