PT-2012-44: SQL Injection in SOAP Web interfaces in Siemens Simatic WinCC WebNavigator

(PT-2012-44) Positive Technologies Security Advisory
SQL Injection in SOAP Web interfaces in Siemens Simatic WinCC WebNavigator

Vulnerable software

Siemens Simatic WinCC WebNavigator
Version: 7.0 SP3 and earlier

Application link:
http://www.siemens.com/

Severity level

Severity level: High
Impact: SQL Injection
Access Vector: Remote  

CVSS v2:
Base Score: 9.0
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:C)

CVE: CVE-2012-3032

Software description

Simatic WinCC is a part of Siemens SIMATIC HMI software that aimed to provide connection between an operator and PLCs that manage technological processes. The WebNavigator component of WinCC gives the users the possibility to control their plants via the web browser with the same look-and-feel like local operator stations.

Vulnerability description

The specialists of the Positive Research center have detected "SQL Injection" vulnerability in Siemens Simatic WinCC WebNavigator.

WebNavigator uses part of the content of SOAP messages to create SQL database queries. If an attacker sends a specially crafted SOAP message to the server, the resulting SQL queries might read or write more data in the database than originally intended.

How to fix

Update your software up to the latest version

Advisory status

16.07.2012 - Vendor is notified
16.07.2012 - Vendor gets vulnerability details
10.09.2012 - Vendor releases fixed version and details
13.09.2012 - Public disclosure

Credits

The vulnerability was discovered by Denis Baranov, Vladimir Kochetkov, Positive Research Center (Positive Technologies Company)

References

http://en.securitylab.ru/lab/PT-2012-44
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-864051.pdf

Reports on the vulnerabilities previously discovered by Positive Research:

http://ptsecurity.com/research/advisory/
http://en.securitylab.ru/lab/

About Positive Technologies

Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks.  Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit www.ptsecurity.com

*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+

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