Positive Research has reported multiple vulnerabilities in Siemens SIMATIC WinCC, which can be exploited by malicious people to conduct cross-site scripting attacks, conduct SQL injection attacks, and disclose certain sensitive information.
1) Certain unspecified input passed to the WebNavigator component is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
2) Certain input passed to the WebNavigator component is not properly verified before being used to read files. This can be exploited to read arbitrary files via directory traversal sequences.
3) Certain input passed via SOAP messages to the WebNavigator component is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.
4) An error within the ActiveX control can be exploited to disclose the username and password of an authenticated user.
The vulnerabilities are reported in versions 7.0 SP3 and prior.
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