Vulnerability Monitor

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CVE-2017-16723

A Cross-site Scripting issue was discovered in PHOENIX CONTACT FL COMSERVER BASIC 232/422/485, FL COMSERVER UNI 232/422/485, FL COMSERVER BAS 232/422/485-T, FL COMSERVER UNI 232/422/485-T, FL COM SERVER RS232, FL COM SERVER RS485, and PSI-MODEM/ETH (running firmware versions prior to 1.99, 2.20, or 2.40). The cross-site scripting vulnerability has been identified, which may allow remote code execution.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.1, 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 limited data confidentiality, limited integrity, for affected systems. Impacting 26 products from phoenixcontact, from phoenixcontact, from phoenixcontact and 23 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-12-11T16:29:00.283

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 6.1 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-79

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	phoenixcontact	fl_comserver_basic_232_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_basic_232	-	No
Operating System	phoenixcontact	fl_comserver_uni_422_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_uni_422	-	No
Operating System	phoenixcontact	fl_comserver_bas_485-t_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_bas_485-t	-	No
Operating System	phoenixcontact	fl_com_server_rs232_firmware	1.99	Yes
Hardware	phoenixcontact	fl_com_server_rs232	-	No
Operating System	phoenixcontact	fl_com_server_rs485_firmware	1.99	Yes
Hardware	phoenixcontact	fl_com_server_rs485	-	No
Operating System	phoenixcontact	psi-modem\/eth_firmware	2.20	Yes
Hardware	phoenixcontact	psi-modem\/eth	-	No
Operating System	phoenixcontact	fl_comserver_basic_422_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_basic_422	-	No
Operating System	phoenixcontact	fl_comserver_basic_485_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_basic_485	-	No
Operating System	phoenixcontact	fl_comserver_uni_485-t_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_uni_485-t	-	No
Operating System	phoenixcontact	fl_comserver_uni_485_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_uni_485	-	No
Operating System	phoenixcontact	fl_comserver_uni_232_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_uni_232	-	No
Operating System	phoenixcontact	fl_comserver_bas_422_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_bas_422	-	No
Operating System	phoenixcontact	fl_comserver_bas_232_firmware	2.40	Yes
Hardware	phoenixcontact	fl_comserver_bas_232	-	No

References

http://www.securityfocus.com/bid/102111 Third Party Advisory, VDB Entry ([email protected])
https://cert.vde.com/de-de/advisories/vde-2017-004 Issue Tracking, Third Party Advisory ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-17-341-03 Issue Tracking, Mitigation, Third Party Advisory, US Government Resource ([email protected])
http://www.securityfocus.com/bid/102111 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://cert.vde.com/de-de/advisories/vde-2017-004 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-17-341-03 Issue Tracking, Mitigation, Third Party Advisory, US Government Resource (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.