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Overview

Vulnerability Score 8.5 8.5
CVE Id CVE-2011-4879
Last Modified 31 Aug 2012 11:38:57
Published 03 Feb 2012 03:55:02
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact NONE NONE
Availability Impact COMPLETE COMPLETE
Access Vector NETWORK
Access Complexity LOW
Authentication NONE

CVE-2011-4879

Summary

miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attackers to read data from arbitrary memory locations or cause a denial of service (application crash) via a crafted POST request.

Vulnerable Systems

Application

  • Siemens Simatic Hmi Panels Comfort Panels

  • Siemens Simatic Hmi Panels Mobile Panels

  • Siemens Simatic Hmi Panels Mp

  • Siemens Simatic Hmi Panels Op

  • Siemens Simatic Hmi Panels Tp

  • Siemens Wincc Flexible 2004

  • Siemens Wincc Flexible 2005

  • Siemens Wincc Flexible 2007

  • Siemens Wincc Flexible 2008

  • Siemens Wincc Flexible Runtime

  • Siemens Wincc Runtime Advanced V11

  • Siemens Wincc V11


References

MISC - http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf

CONFIRM - http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf

MISC - http://aluigi.altervista.org/adv/winccflex_1-adv.txt

XF - simatic-miniweb-dos(71453)

MISC - http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02A.pdf

MISC - http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-332-02.pdf

OSVDB - 77384

EXPLOIT-DB - 18166

MISC - http://aluigi.org/adv/winccflex_1-adv.txt


Last Updated: 27 May 2016 10:56:27