# CVE-2024-43685: Session token fixation in TimeProvider 4100


- **Severity:** High 8.7 (`CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:H/R:U/V:C/RE:M/U:Amber`)
- **Exploited in the wild:** Not known
- **Fix available:** No
- **Published:** 4 Oct 2024
- **Updated:** 29 Aug 2025
- **Also known as:** GHSA-mwp3-45p3-xq9x

## What is CVE-2024-43685?

CVE-2024-43685 is a high-severity vulnerability in Microchip TimeProvider 4100, published on 4 Oct 2024. 

### Official description

Improper Authentication vulnerability in Microchip TimeProvider 4100 (login modules) allows Session Hijacking.This issue affects TimeProvider 4100: from 1.0 before 2.4.7.

Weakness: CWE-613 (DEPRECATED: Insufficient Session Expiration)

## Which versions are affected by CVE-2024-43685?

It affects 1 product.


Products: Microchip Timeprovider 4100 Firmware.

## How do I fix CVE-2024-43685?

No fix has been published for CVE-2024-43685 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-43685 being exploited?

There is no known exploitation of CVE-2024-43685 in the wild and no public exploit code.

## Other vulnerabilities in Microchip TimeProvider 4100

- [CVE-2025-47900](https://insights.sbomify.com/CVE-2025-47900/): RCE on backup configuration password (high 8.9)
- [CVE-2025-47901](https://insights.sbomify.com/CVE-2025-47901/): RCE on restore configuration password (high 8.9)
- [CVE-2024-43683](https://insights.sbomify.com/CVE-2024-43683/): Improper verification of the Host header in TimeProvider 4100 (high 8.7)
- [CVE-2024-43684](https://insights.sbomify.com/CVE-2024-43684/): Cross-Site Request Forgery vulnerability in TimeProvider 4100 (high 8.7)
- [CVE-2024-9054](https://insights.sbomify.com/CVE-2024-9054/): Remote code Execution inTimeProvider® 4100 (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-43685 and fix it if it is affected.

What it is: CVE-2024-43685 is a high-severity vulnerability in Microchip TimeProvider 4100, published on 4 Oct 2024. 
Exploitation: There is no known exploitation of CVE-2024-43685 in the wild and no public exploit code.

Affected product: Microchip TimeProvider 4100. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-43685/ (Markdown: https://insights.sbomify.com/CVE-2024-43685/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-43685
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-43685
- OSV: https://osv.dev/vulnerability/CVE-2024-43685

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-43685/
Summaries are generated and may contain mistakes; the official description above is the record.