What’s Vulnerable › Vulnerabilities
CVE-2020-12504: Pepperl+Fuchs improper authorization affects multiple Comtrol RocketLinx products
- Severity: critical (CVSS 9.8 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.0% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2020-10-15 · updated 2026-06-17
- Weakness: CWE-912
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) and ICRL-M-8RJ45/4SFP-G-DIN, ICRL-M-16RJ45/4CP-G-DIN FW 1.2.3 and below has an active TFTP-Service.
Affected products
- Korenix Jetwave 2212G Firmware: 1.4
- Korenix Jetwave 2212S Firmware: 1.5
- Korenix Jetwave 2212X Firmware: 1.5
- Korenix Jetwave 2311 Firmware: 1.2
- Korenix Jetwave 3220 Firmware: 1.2
- Korenix Jetwave 3420 Firmware: 1.1.3t
- Korenix Jetwave 4510 Firmware: 3.0b
- Korenix Jetwave 4706 Firmware: 2.3b
- Korenix Jetwave 4706F Firmware: 2.3b
- Korenix Jetwave 5010 Firmware: 3.1a
- Korenix Jetwave 5310 Firmware: 1.5
- Korenix Jetwave 5428G-20Sfp Firmware: 1.0
- Korenix Jetwave 5810G Firmware: 1.1
- Pepperl-Fuchs Es7506 Firmware: all versions
- Pepperl-Fuchs Es7510-Xt Firmware: before 2.1.1 — fixed in 2.1.1
- Pepperl-Fuchs Es7510 Firmware: all versions
- Pepperl-Fuchs Es7528 Firmware: all versions
- Pepperl-Fuchs Es8508 Firmware: all versions
- Pepperl-Fuchs Es8508F Firmware: all versions
- Pepperl-Fuchs Es8509-Xt Firmware: all versions
- Pepperl-Fuchs Es8510-Xt Firmware: all versions
- Pepperl-Fuchs Es8510-Xte Firmware: all versions
- Pepperl-Fuchs Es8510 Firmware: before 3.1.1 — fixed in 3.1.1
- Pepperl-Fuchs Es9528-Xt Firmware: all versions
- Pepperl-Fuchs Es9528-Xtv2 Firmware: all versions
- Pepperl-Fuchs Es9528 Firmware: all versions
- Pepperl-Fuchs Icrl-M-16Rj45/4Cp-G-Din Firmware: through 1.2.3
- Pepperl-Fuchs Icrl-M-8Rj45/4Sfp-G-Din Firmware: through 1.2.3
- Westermo Pmi-110-F2G Firmware: 1.5
How to fix
Upgrade to a fixed version: Pepperl-Fuchs Es7510-Xt Firmware 2.1.1; Pepperl-Fuchs Es8510 Firmware 3.1.1. Check the vendor advisory for mitigations.
References
- http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
- http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
- http://seclists.org/fulldisclosure/2021/Jun/0
- https://cert.vde.com/de-de/advisories/vde-2020-040
- https://cert.vde.com/en-us/advisories/vde-2020-053
- https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/
- http://packetstormsecurity.com/files/162903/Korenix-CSRF-Backdoor-Accounts-Command-Injection-Missing-Authentication.html
- http://packetstormsecurity.com/files/165875/Korenix-Technology-JetWave-CSRF-Command-Injection-Missing-Authentication.html
- http://seclists.org/fulldisclosure/2021/Jun/0
- https://cert.vde.com/de-de/advisories/vde-2020-040
- https://cert.vde.com/en-us/advisories/vde-2020-053
- https://sec-consult.com/vulnerability-lab/advisory/multiple-critical-vulnerabilities-in-korenix-technology-westermo-pepperl-fuchs/
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