National Cyber-Alert System
Vulnerability Summary for CVE-2012-6439
Original release date:01/24/2013
Last revised:01/25/2013
Source:
US-CERT/NIST
Overview
Rockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400 allow remote attackers to cause a denial of service (control and communication outage) via a CIP message that modifies the (1) configuration or (2) network parameters.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
7.8
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: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-13-011-03.pdf
Name: http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf