National Cyber Awareness System
Vulnerability Summary for CVE-2011-4514
Original release date:02/03/2012
Last revised:02/06/2012
Source:
US-CERT/NIST
Overview
The TELNET daemon in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not perform authentication, which makes it easier for remote attackers to obtain access via a TCP session.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
References to Advisories, Solutions, and Tools
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US-CERT Security Bulletin: http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
Name: http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf
External Source: CONFIRM
Name: http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
Type: Advisory
