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Phoenix Contact: Multiple vulnerabilities in TC ROUTER, TC CLOUD CLIENT and CLOUD CLIENT devices

VDE-2023-017
Last update
05/22/2025 15:03
Published at
08/08/2023 06:00
Vendor(s)
Phoenix Contact GmbH & Co. KG
External ID
VDE-2023-017
CSAF Document
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Summary

Two vulnerabilities have been discovered in the firmware of TC ROUTER and TC CLOUD CLIENT devices.

Update A, 2024-08-12

Added a summary text
Added details to impact

Impact

CVE-2023-3526

An attacker could embed a link on a page controlled by him that includes malicious scripts and points to the license viewer page. These scripts are executed in a victim's browser when they open the page containing the vulnerable field.

CVE-2023-3569

An authenticated attacker could use the file upload function to upload a crafted XML to cause a denial of service.

Affected Product(s)

Model no. Product name Affected versions
1221706 CLOUD CLIENT 1101T-TX/TX Firmware <2.06.10
2702886 TC CLOUD CLIENT 1002-4G Firmware <2.07.2
2702888 TC CLOUD CLIENT 1002-4G ATT Firmware <2.07.2
2702887 TC CLOUD CLIENT 1002-4G VZW Firmware <2.07.2
2702528 TC ROUTER 3002T-4G Firmware <2.07.2
2702533 TC ROUTER 3002T-4G ATT Firmware <2.07.2
2702532 TC ROUTER 3002T-4G VZW Firmware <2.07.2

Vulnerabilities

Expand / Collapse all

Published
09/22/2025 14:58
Severity
9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)
Summary

In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior to 2.06.10 an unauthenticated remote attacker could use a reflective XSS within the license viewer page of the devices in order to execute code in the context of the user's browser.

References
cve.org | nvd.nist.gov

Published
09/22/2025 14:58
Severity
4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Weakness
Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') (CWE-776)
Summary

In PHOENIX CONTACTs TC ROUTER and TC CLOUD CLIENT in versions prior to 2.07.2 as well as CLOUD CLIENT 1101T-TX/TX prior to 2.06.10 an authenticated remote attacker with admin privileges could upload a crafted XML file which causes a denial-of-service.

References
cve.org | nvd.nist.gov

Mitigation

Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note.
Measures to protect network-capable devices with Ethernet connection

Remediation

Phoenix Contact strongly recommends updating to the latest available firmware version, which fixes these vulnerabilities.

Revision History

Version Date Summary
1 08/08/2023 06:00 Initial revision.
2 08/12/2024 12:00 Update A
3 05/22/2025 15:03 Fix: quotation mark