Vulnerability Monitor

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CVE-2023-3526

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.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.6, indicating it can be exploited remotely over the network with relatively low complexity though user interaction is required and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 14 products from phoenixcontact, from phoenixcontact, from phoenixcontact and 11 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-08-08T07:15:10.150

Last Modified

2024-11-21T08:17:27.967

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.6 (CRITICAL)

Weaknesses

Type: Secondary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	phoenixcontact	cloud_client_1101t-tx_firmware	< 2.06.10	Yes
Hardware	phoenixcontact	cloud_client_1101t-tx	-	No
Operating System	phoenixcontact	tc_cloud_client_1002-4g_att_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_cloud_client_1002-4g_att	-	No
Operating System	phoenixcontact	tc_cloud_client_1002-4g_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_cloud_client_1002-4g	-	No
Operating System	phoenixcontact	tc_cloud_client_1002-4g_vzw_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_cloud_client_1002-4g_vzw	-	No
Operating System	phoenixcontact	tc_router_3002t-4g_att_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_router_3002t-4g_att	-	No
Operating System	phoenixcontact	tc_router_3002t-4g_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_router_3002t-4g	-	No
Operating System	phoenixcontact	tc_router_3002t-4g_vzw_firmware	< 2.07.2	Yes
Hardware	phoenixcontact	tc_router_3002t-4g_vzw	-	No

References

http://packetstormsecurity.com/files/174152/Phoenix-Contact-TC-Cloud-TC-Router-2.x-XSS-Memory-Consumption.html ([email protected])
http://seclists.org/fulldisclosure/2023/Aug/12 ([email protected])
https://cert.vde.com/en/advisories/VDE-2023-017 Third Party Advisory ([email protected])
http://packetstormsecurity.com/files/174152/Phoenix-Contact-TC-Cloud-TC-Router-2.x-XSS-Memory-Consumption.html (af854a3a-2127-422b-91ae-364da2661108)
http://seclists.org/fulldisclosure/2023/Aug/12 (af854a3a-2127-422b-91ae-364da2661108)
https://cert.vde.com/en/advisories/VDE-2023-017 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For phoenixcontact's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.