PT-2013-79: Relative path traversal in SIMATIC WinCC Open Architecture Vulnerable platformSIMATIC WinCC Open Architecture Version: 3.12 and earlierLink: http://www.siemens.com/Severity levelSeverity level: Medium Impact: Access to Sensitive Information Access Vector: Remote CVSS v2: Base Score: 5.0 Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)CVE: CVE-2014-1698Platform descriptionSIMATIC WinCC Open Architecture is a SCADA system for visualizing and operating processes, production flows, machines and plants in all lines of business.Vulnerability descriptionThe specialists of the Positive Research center have detected a Relative path traversal vulnerability in SIMATIC WinCC Open Architecture.The SIMATIC WinCC OA integrated Web server at Port 4999/TCP might allow attackers to traverse through the server’s file system based on the application’s Windows user permissions by sending specially crafted packets over the network without authentication.How to fixUpdate your software up to the latest versionAdvisory status 01.12.2013 - Vendor gets vulnerability details 03.02.2014 - Vendor releases fixed version and details 14.02.2014 - Public disclosureCreditsThe vulnerability was detected by Kirill Nesterov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-79 http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-342587.pdf https://ics-cert.us-cert.gov/advisories/ICSA-14-035-01 Reports on the vulnerabilities previously discovered by Positive Research:http://www.ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/