PT-2013-50: Cross-Site Request Forgery (CSRF) in Siemens Simatic WinCC TIA Portal

(PT-2013-50) Positive Technologies Security Advisory
Cross-Site Request Forgery (CSRF) in Siemens Simatic WinCC TIA Portal

Vulnerable software

Siemens Simatic WinCC TIA Portal
Version: 12.0 and earlier

Application link:
http://www.siemens.com/

Severity level

Severity 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-2013-4911

Software description

WinCC 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 description

The 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 fix

Update your software up to the latest version

Advisory status

02.08.2012 - Vendor gets vulnerability details
31.07.2013 - Vendor releases fixed version and details
19.08.2013 - Public disclosure

Credits

The vulnerability was discovered by Timur Yunusov, Sergey Bobrov, Positive Research Center (Positive Technologies Company)

References

http://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/

About Positive Technologies

Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks.  Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit www.ptsecurity.com

*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+

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