PT-2013-50: Cross-Site Request Forgery (CSRF) 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: Autentication hijacking Access Vector: Remote CVSS v2: Base Score: 6.8 Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)CVE: CVE-2013-4911Software 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 "Cross-Site Request Forgery" vulnerability in Siemens Simatic WinCC TIA Portal.Cross-site request forgery (CSRF) vulnerability in Siemens WinCC (TIA Portal) allows remote attackers to hijack the authentication of unspecified victims by leveraging improper configuration of SIMATIC HMI panels by the WinCC product.How to fixUpdate your software up to the latest versionAdvisory status 02.08.2012 - 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-2013-50 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/