SSA-064884: WinCC/TIA Portal fixes

[scadastrangelove <scadastrangelove () gmail com>]

Siemens updates WinCC SCADA and TIA Portal to fix two minor issues in HMI
panels discovered by our team:

CVE-2013-4911: CSRF (Cross-site request forgery) attacks, compromising
integrity and availability of the system
CVE-2013-4912: URL redirection to untrusted websites

Thanks for Timur Yunusov and Sergey Bobrov for research and thanks for
Siemens Product CERT for fix and collaboration.

Details

Siemens SSA-064884:
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-064884.pdf

ICS-CERT ICSA-13-213-02:
https://ics-cert.us-cert.gov/advisories/ICSA-13-213-02

SCADA StrangeLove Blog:
http://scadastrangelove.blogspot.com/2013/08/ssa-064884-wincctia-portal-fixes.html

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