PT-2013-51: Open Redirect Vulnerability in Siemens Simatic WinCC TIA Portal

Vulnerable software

Siemens Simatic WinCC TIA Portal
Version: 12.0 and earlier

Application link:

Severity level

Severity level: Medium
Impact: Redirect users to arbitrary web sites
Access Vector: Remote  

CVSS v2:
Base Score: 5.8
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVE: CVE-2013-4912

Software description

WinCC TIA Portal is part of a new, integrated engineering concept which offers a uniform engineering environment for programming and configuration of control, visualization and drive solutions.

Vulnerability description

The specialists of the Positive Research center have detected "Open Redirect" vulnerability in Siemens Simatic WinCC TIA Portal.

Open redirect vulnerability in Siemens WinCC (TIA Portal) allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.

How to fix

Update your software up to the latest version

Advisory status

15.05.2012 - Vendor gets vulnerability details
31.07.2013 - Vendor releases fixed version and details
19.08.2013 - Public disclosure


The vulnerability was discovered by Timur Yunusov, Sergey Bobrov, Positive Research Center (Positive Technologies Company)


Reports on the vulnerabilities previously discovered by Positive Research: