Summary
The user management of the FL SWITCH 2xxx family of devices implements access rights based on roles and permission groups. An unprivileged user logged in via the SSH CLI is assigned to the admin role independent of his configured access role enabling full access to the device configuration (CWE-266 - Incorrect Privilege Assignment).
User Management via SSH was first introduced with firmware version 3.00. Firmware versions other than 3.00 are not affected by this vulnerability.
Impact
An attacker could elevate his privileges and take over control of the device.
Affected Product(s)
| Model no. | Product name | Affected versions |
|---|---|---|
| 2702323 | FL SWITCH 2005 | Firmware 3.00 |
| 2702324 | FL SWITCH 2008 | Firmware 3.00 |
| 1106707 | FL SWITCH 2008F | Firmware 3.00 |
| 2702903 | FL SWITCH 2016 | Firmware 3.00 |
| 2702665 | FL SWITCH 2105 | Firmware 3.00 |
| 2702666 | FL SWITCH 2108 | Firmware 3.00 |
| 2702908 | FL SWITCH 2116 | Firmware 3.00 |
| 2702334 | FL SWITCH 2204-2TC-2SFX | Firmware 3.00 |
| 2702330 | FL SWITCH 2206-2FX | Firmware 3.00 |
| 2702331 | FL SWITCH 2206-2FX SM | Firmware 3.00 |
| 2702333 | FL SWITCH 2206-2FX SM ST | Firmware 3.00 |
| 2702332 | FL SWITCH 2206-2FX ST | Firmware 3.00 |
| 2702969 | FL SWITCH 2206-2SFX | Firmware 3.00 |
| 1044028 | FL SWITCH 2206-2SFX PN | Firmware 3.00 |
| 1095628 | FL SWITCH 2206C-2FX | Firmware 3.00 |
| 2702328 | FL SWITCH 2207-FX | Firmware 3.00 |
| 2702329 | FL SWITCH 2207-FX SM | Firmware 3.00 |
| 2702326, 2702327 | FL SWITCH 2208 | Firmware 3.00 |
| 1044024 | FL SWITCH 2208 PN | Firmware 3.00 |
| 1095627 | FL SWITCH 2208C | Firmware 3.00 |
| 2702907 | FL SWITCH 2212-2TC-2SFX | Firmware 3.00 |
| 2702905 | FL SWITCH 2214-2FX | Firmware 3.00 |
| 2702906 | FL SWITCH 2214-2FX SM | Firmware 3.00 |
| 1006188 | FL SWITCH 2214-2SFX | Firmware 3.00 |
| 1044030 | FL SWITCH 2214-2SFX PN | Firmware 3.00 |
| 2702904 | FL SWITCH 2216 | Firmware 3.00 |
| 1044029 | FL SWITCH 2216 PN | Firmware 3.00 |
| 2702653 | FL SWITCH 2304-2GC-2SFP | Firmware 3.00 |
| 2702970 | FL SWITCH 2306-2SFP | Firmware 3.00 |
| 1009222 | FL SWITCH 2306-2SFP PN | Firmware 3.00 |
| 2702652 | FL SWITCH 2308 | Firmware 3.00 |
| 1009220 | FL SWITCH 2308 PN | Firmware 3.00 |
| 2702910 | FL SWITCH 2312-2GC-2SFP | Firmware 3.00 |
| 1006191 | FL SWITCH 2314-2SFP | Firmware 3.00 |
| 1031683 | FL SWITCH 2314-2SFP PN | Firmware 3.00 |
| 2702909 | FL SWITCH 2316 | Firmware 3.00 |
| 1031673 | FL SWITCH 2316 PN | Firmware 3.00 |
| 1184084 | FL SWITCH 2316/K1 | Firmware 3.00 |
| 1088853 | FL SWITCH 2404-2TC-2SFX | Firmware 3.00 |
| 1043414 | FL SWITCH 2406-2SFX | Firmware 3.00 |
| 1089126 | FL SWITCH 2406-2SFX PN | Firmware 3.00 |
| 1043412 | FL SWITCH 2408 | Firmware 3.00 |
| 1089133 | FL SWITCH 2408 PN | Firmware 3.00 |
| 1088875 | FL SWITCH 2412-2TC-2SFX | Firmware 3.00 |
| 1043423 | FL SWITCH 2414-2SFX | Firmware 3.00 |
| 1089139 | FL SWITCH 2414-2SFX PN | Firmware 3.00 |
| 1043416 | FL SWITCH 2416 | Firmware 3.00 |
| 1089150 | FL SWITCH 2416 PN | Firmware 3.00 |
| 1088872 | FL SWITCH 2504-2GC-2SFP | Firmware 3.00 |
| 1043491 | FL SWITCH 2506-2SFP | Firmware 3.00 |
| 1089135 | FL SWITCH 2506-2SFP PN | Firmware 3.00 |
| 1215329 | FL SWITCH 2506-2SFP/K1 | Firmware 3.00 |
| 1043484 | FL SWITCH 2508 | Firmware 3.00 |
| 1089134 | FL SWITCH 2508 PN | Firmware 3.00 |
| 1215350 | FL SWITCH 2508/K1 | Firmware 3.00 |
| 1088856 | FL SWITCH 2512-2GC-2SFP | Firmware 3.00 |
| 1043499 | FL SWITCH 2514-2SFP | Firmware 3.00 |
| 1089154 | FL SWITCH 2514-2SFP PN | Firmware 3.00 |
| 1043496 | FL SWITCH 2516 | Firmware 3.00 |
| 1089205 | FL SWITCH 2516 PN | Firmware 3.00 |
| 1106500 | FL SWITCH 2608 | Firmware 3.00 |
| 1106616 | FL SWITCH 2608 PN | Firmware 3.00 |
| 1106615 | FL SWITCH 2708 | Firmware 3.00 |
| 1106610 | FL SWITCH 2708 PN | Firmware 3.00 |
Vulnerabilities
Expand / Collapse allIn Phoenix Contact FL SWITCH Series 2xxx in version 3.00 an incorrect privilege assignment allows an low privileged user to enable full access to the device configuration.
Mitigation
We recommend disabling the login via SSH on devices running firmware version 3.00. If access to the CLI is required and an encrypted connection is not necessary in the specific application, the unencrypted Telnet service may be utilized, which is not affected by this vulnerability.
Remediation
Phoenix Contact strongly recommends affected users to upgrade to the current Firmware 3.10 or higher which fixes this vulnerability.
Revision History
| Version | Date | Summary |
|---|---|---|
| 1 | 25.01.2022 09:05 | Initial revision. |
| 2 | 14.05.2025 15:00 | Fix: added distribution |