PT-2013-51: Open Redirect Vulnerability in Siemens Simatic WinCC TIA Portal Vulnerable softwareSiemens Simatic WinCC TIA Portal Version: 12.0 and earlierApplication link: http://www.siemens.com/Severity levelSeverity 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-2013-4912Software descriptionWinCC 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 descriptionThe 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 fixUpdate your software up to the latest versionAdvisory status 15.05.2012 - Vendor gets vulnerability details 31.07.2013 - Vendor releases fixed version and details 19.08.2013 - Public disclosureCreditsThe vulnerability was discovered by Timur Yunusov, Sergey Bobrov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-51 http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-064884.pdf Reports on the vulnerabilities previously discovered by Positive Research:http://ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/