PT-2013-42: SQL Injection in Siemens WinCC and SIMATIC PCS 7 Vulnerable softwareSiemens WinCC Version: 7.2 and earlierSiemens SIMATIC PCS 7 Version: 8.0 SP1 and earlierApplication link: http://www.siemens.com/Severity levelSeverity level: High Impact: SQL Injection Access Vector: Remote CVSS v2: Base Score: 10 Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C)CVE: CVE-2013-3957Software descriptionSiemens WinCC is a part of Siemens SIMATIC HMI software that aimed to provide connection between an operator and PLCs that manage technological processes. The WebNavigator component of WinCC gives the users the possibility to control their plants via the web browser with the same look-and-feel like local operator stations.Vulnerability descriptionThe specialists of the Positive Research center have detected "SQL Injection" vulnerability in Siemens WinCC and SIMATIC PCS 7.The WinCC Web Navigator 7.2 and Runtime Client (OPC protocol) have input filtering in the login screen an attacker can overcome, allowing injection of SQL statements into queries. An attacker could gain elevated privileges by manipulating the database. This could allow the attacker to obtain full system access.How to fixUpdate your software up to the latest versionAdvisory status 13.01.2013 - Vendor gets vulnerability details 14.06.2013 - Vendor releases fixed version and details 03.07.2013 - Public disclosureCreditsThe vulnerability was detected by Sergey Gordeychik, Timur Yunusov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2013-42 http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345843.pdf https://ics-cert.us-cert.gov/advisories/ICSA-13-169-02 Reports on the vulnerabilities previously discovered by Positive Research:http://ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/
