Siemens En100 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

medium Tenable.ot Plugin ID 500353
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Description

A vulnerability has been identified in EN100 Ethernet module DNP3 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions < V4.37), EN100 Ethernet module IEC104 variant (All versions), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions). The web interface could allow Cross-Site Scripting (XSS) attacks if an attacker is able to modify content of particular web pages, causing the application to behave in unexpected ways for legitimate users. Successful exploitation does not require for an attacker to be authenticated to the web interface. This could allow the attacker to read or modify contents of the web application. At the time of advisory publication no public exploitation of this security. vulnerability was known.

Solution

Refer to vendor advisory for Security Updates

See Also

https://cert-portal.siemens.com/productcert/pdf/ssa-418979.pdf

https://www.us-cert.gov/ics/advisories/icsa-19-344-07

Plugin Details

Severity: Medium

ID: 500353

Version: 1.0

Type: local

Family: SCADA

Published: 5/27/2020

Updated: 5/27/2020

Risk Information

CVSS Score Source: CVE-2019-13943

CVSS v2

Risk Factor: Medium

Base Score: 4.3

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

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Vulnerability Information

CPE: cpe:2.3:o:siemens:en100_ethernet_module_with_firmware_variant_dnp3_tcp:*:*:*:*:*:*:*:*, cpe:2.3:o:siemens:en100_ethernet_module_with_firmware_variant_iec104:*:*:*:*:*:*:*:*, cpe:2.3:o:siemens:en100_ethernet_module_with_firmware_variant_iec_61850:*:*:*:*:*:*:*:*, cpe:2.3:o:siemens:en100_ethernet_module_with_firmware_variant_modbus_tcp:*:*:*:*:*:*:*:*, cpe:2.3:o:siemens:en100_ethernet_module_with_firmware_variant_profinet_io:*:*:*:*:*:*:*:*, cpe:2.3:h:siemens:en100_ethernet_module:-:*:*:*:*:*:*:*

Patch Publication Date: 12/12/2019

Vulnerability Publication Date: 12/12/2019

Reference Information

CVE: CVE-2019-13943