CVE-2020-9435
mediumpriority · track · 30OT risk · elevatedEPSS 0.012 · 67 %ileDEEUUSEPSS · scored 2026-10-27
PHOENIX CONTACT TC ROUTER 3002T-4G through 2.05.3, TC ROUTER 2002T-3G through 2.05.3, TC ROUTER 3002T-4G VZW through 2.05.3, TC ROUTER 3002T-4G ATT through 2.05.3, TC CLOUD CLIENT 1002-4G through 2.03.17, and TC CLOUD CLIENT 1002-TXTX through 1.03.17 devices contain a hardcoded certificate (and key) that is used by default for web-based services on the device. Impersonation, man-in-the-middle, or passive decryption attacks are possible if the generic certificate is not replaced by a device-specific certificate during installation.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- Mitigationphoenix_contact_psirt
The pre-installed generic X.509 certificate should be renewed or replaced by an individual certificate during initial configuration. For details on replacing this certificate please refer to the user manual on page 51 et seq. Press 'renew' to create a new self-signed device certificate or upload a user specific certificate with the upload dialog. To avoid the manual generation of an individual certificate, the devices will be shipped with individual certificates starting with a future release.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (23)
Products and version ranges known to be affected.
- phoenixcontact tc cloud client 1002-4g firmware≤ 2.03.17nvdUScpe:2.3:o:phoenixcontact:tc_cloud_client_1002-4g_firmware:*:*:*:*:*:*:*:*
- phoenixcontact tc cloud client 1002-txtx firmware≤ 1.03.17nvdUScpe:2.3:o:phoenixcontact:tc_cloud_client_1002-txtx_firmware:*:*:*:*:*:*:*:*
- phoenixcontact tc router 2002t-3g firmware≤ 2.05.3nvdUScpe:2.3:o:phoenixcontact:tc_router_2002t-3g_firmware:*:*:*:*:*:*:*:*
- phoenixcontact tc router 3002t-4g att firmware≤ 2.05.3nvdUScpe:2.3:o:phoenixcontact:tc_router_3002t-4g_att_firmware:*:*:*:*:*:*:*:*
- phoenixcontact tc router 3002t-4g firmware≤ 2.05.3nvdUScpe:2.3:o:phoenixcontact:tc_router_3002t-4g_firmware:*:*:*:*:*:*:*:*
- phoenixcontact tc router 3002t-4g vzw firmware≤ 2.05.3nvdUScpe:2.3:o:phoenixcontact:tc_router_3002t-4g_vzw_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- VDE-2020-003PHOENIX CONTACT: TC Router and TC Cloud Client multiple vulnerabilities2020-03-05csaf · phoenix_contact_psirtDE
Multiple Vulnerabilities exist in components used by the aforementioned products. See CVE-Details for more information.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (13)
External citations — patches, advisories, analysis.
- http://seclists.org/fulldisclosure/2020/Mar/15cnnvd
- https://cert.vde.com/en-us/advisories/vde-2020-003cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-9435cnnvd
- https://packetstormsecurity.com/files/156729/Phoenix-Contact-TC-Router-TC-Cloud-Client-Command-Injection.htmlcnnvd
- https://www.phoenixcontact.com/Patchcnnvd
- http://packetstormsecurity.com/files/156729/Phoenix-Contact-TC-Router-TC-Cloud-Client-Command-Injection.htmlenisa_euvd
- http://seclists.org/fulldisclosure/2020/Mar/15enisa_euvd
- https://cert.vde.com/en-us/advisories/enisa_euvd
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