SCADA Vulnerabilities & Exposures (SVE)

CRITIFENCE® SCADA Vulnerabilities and Exposures Database (SVE)

[SVE-232949270] Siemens SINEMA Remote Connect Server Cross-site Scripting Vulnerability

Date Type Platform Author EDB-ID CVE-ID OSVDB-ID Download App SIS Signature
2016-07-26OTHERSiemens SINEMA Remote Connect ServerAntonio Morales Maldonado, Alexander Van Maele and Tijl DeneutN/A2016-6204N/AN/AN/A

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# Siemens SINEMA Remote Connect Server Cross-site Scripting Vulnerability
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### OVERVIEW

Researchers Antonio Morales Maldonado of INNOTEC SYSTEM, and Alexander Van Maele and Tijl Deneut of Howest have identified a cross-site scripting (XSS) vulnerability in the Siemens SINEMA Remote Connect Server application. Siemens has produced an update to mitigate this vulnerability.

This vulnerability could be exploited remotely.




### AFFECTED PRODUCTS

The following SINEMA Remote Connect Server versions are affected:

SINEMA Remote Connect Server, all versions prior to Version 1.2






### IMPACT

Exploiting this vulnerability could enable attackers to read some files from Siemens SINEMA Remote Connect Server devices. This could enable a remote attacker ongoing access to these devices.

Impact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of this vulnerability based on their operational environment, architecture, and product implementation.






### BACKGROUND

Siemens is a multinational company headquartered in Munich, Germany.

The affected product, SINEMA Remote Connect Server, is a network management appliance for industrial applications and allows network monitoring as well as diagnostics and reporting functions integrated into SCADA systems such as WinCC. According to Siemens, SINEMA products are deployed across several sectors including Chemical, Commercial Facilities, Critical Manufacturing, Energy, Government Facilities, Water and Wastewater Systems, and others. Siemens estimates that this product is used primarily in the United States and Europe with a small percentage in Asia.





### VULNERABILITY CHARACTERIZATION


# VULNERABILITY OVERVIEW

CROSS-SITE SCRIPTING

The integrated web server (Port 443/TCP) of the affected SINEMA Remote Connect Server could allow XSS attacks if unsuspecting users are tricked into accessing a malicious link.
CVE-2016-6204 has been assigned to this vulnerability. A CVSS v3 base score of 4.7 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N).






### VULNERABILITY DETAILS


# EXPLOITABILITY

This vulnerability could be exploited remotely.


# EXISTENCE OF EXPLOIT

No known public exploits specifically target this vulnerability.


# DIFFICULTY

An attacker with a low skill would be able to exploit this vulnerability. Social engineering is required to convince the user into accessing a malicious link. This decreases the likelihood of a successful exploit.





### MITIGATION

Siemens provides software update V1.2 for SINEMA Remote Connect Server which fixes the vulnerability and recommends users update to the new version. The software update for SINEMA Remote Connect Server can be obtained at:
https://support.industry.siemens.com/cs/ww/en/view/109737963

As a general security measure, Siemens strongly recommends to configure the environment according to its operational guidelines available at:
https://www.siemens.com/cert/operational-guidelines-industrial-security

For more information on this vulnerability and more detailed mitigation instructions, please see Siemens Security Advisory SSA-119132 at the following location:
http://www.siemens.com/cert/en/cert-security-advisories.htm