Vulnerability Description
When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that changes the product’s configuration and network parameters, a DoS condition can occur. This situation could cause loss of availability and a disruption of communication with other connected devices. 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
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rockwellautomation | Controllogix Controllers | <= 20 |
| Rockwellautomation | Guardlogix Controllers | <= 20 |
| Rockwellautomation | Micrologix | <= 1100 |
| Rockwellautomation | Softlogix Controllers | <= 19 |
| Rockwellautomation | 1756-Enbt | - |
| Rockwellautomation | 1756-Eweb | - |
| Rockwellautomation | 1768-Enbt | - |
| Rockwellautomation | 1768-Eweb | - |
| Rockwellautomation | 1794-Aentr Flex I\/O Ethernet\/Ip Adapter | - |
| Rockwellautomation | Compactlogix | <= 18 |
| Rockwellautomation | Compactlogix Controllers | <= 19 |
| Rockwellautomation | Compactlogix L32E Controller | - |
| Rockwellautomation | Compactlogix L35E Controller | - |
| Rockwellautomation | Controllogix | <= 18 |
| Rockwellautomation | Flexlogix 1788-Enbt Adapter | - |
| Rockwellautomation | Guardlogix | <= 18 |
| Rockwellautomation | Softlogix | <= 18 |
Related Weaknesses (CWE)
References
- http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102
- http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdfUS Government Resource
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156
- http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdfUS Government Resource
FAQ
What is CVE-2012-6439?
CVE-2012-6439 is a vulnerability with a CVSS score of 8.5 (HIGH). When an affected product receives a valid CIP message from an unauthorized or unintended source to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP that changes the product’s configu...
How severe is CVE-2012-6439?
CVE-2012-6439 has been rated HIGH with a CVSS base score of 8.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-6439?
Check the references section above for vendor advisories and patch information. Affected products include: Rockwellautomation Controllogix Controllers, Rockwellautomation Guardlogix Controllers, Rockwellautomation Micrologix, Rockwellautomation Softlogix Controllers, Rockwellautomation 1756-Enbt.