PT-2013-30: Denial of Service in Siemens Simatic WinCC TIA Portal Vulnerable softwareSiemens Simatic WinCC TIA Portal Version: 11.x Application link: http://www.siemens.com/Severity levelSeverity level: Medium Impact: Denial of Service Access Vector: Remote CVSS v2: Base Score: 4.0 Vector: (AV:N/AC:L/Au:S/C:N/I:N/A:P)CVE: CVE-2013-0669Software 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 "Denial of Service" vulnerability in Siemens Simatic WinCC TIA Portal.By manipulating HTTP requests an authenticated attacker may crash the HMI’s web application. The web application will become unavailable until the device is restarted.How to fixUpdate your software up to the latest versionAdvisory status 21.09.2012 - Vendor gets vulnerability details 15.03.2013 - Vendor releases fixed version and details 29.03.2013 - Public disclosureCreditsThe vulnerability was discovered by Roman Ilin, Artem Chaykin, Ilya Karpov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-30 http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-212483.pdf Reports on the vulnerabilities previously discovered by Positive Research:http://ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/
