(PT-2012-45) Positive Technologies Security Advisory
Username and password disclosure in ActiveX control in Siemens Simatic WinCC WebNavigator
Siemens Simatic WinCC WebNavigator
Version: 7.0 SP3 and earlier
Severity level: High
Impact: Username and password disclosure
Access Vector: Remote
Base Score: 8.3
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.
The specialists of the Positive Research center have detected "Username and password disclosure" vulnerability in Siemens Simatic WinCC WebNavigator.
WebNavigator uses ActiveX controls in the user’s browser. The methods of these ActiveX controls can be called by any web site this user visits. By maliciously
parameterizing this method, the attacker can gain access to username and password of the legitimate user.
How to fix
Update your software up to the latest version
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
The vulnerability was discovered by Denis Baranov, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research:
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+