CVE-2012-6435
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 instructs the CPU to stop logic execution and enter a fault state, a DoS 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
- Score
- CVSS 3.1 7.5 High
- Status
- Modified - ics-cert@hq.dhs.gov
- Published
- 2013-01-24
- Last modified
- 2026-06-03
- Weaknesses
- CWE-284, CWE-399
Affected products
- 1756-enbt (Rockwell Automation)
- 1756-eweb (Rockwell Automation)
- 1768-enbt (Rockwell Automation)
- 1768-eweb Communication Modules (Rockwell Automation)
- 1788-enbt Flexlogix Adapter (Rockwell Automation)
- 1794-aentr Flex Io Ethernetip Adapter (Rockwell Automation)
- And Softlogix (Rockwell Automation)
- Compactlogix (Rockwell Automation)
- Compactlogix And Softlogix Controllers (Rockwell Automation)
- Compactlogix L32e And L35e Controllers (Rockwell Automation)
- Controllogix (Rockwell Automation)
- Controllogix And Guardlogix Controllers (Rockwell Automation)
- Guardlogix (Rockwell Automation)
- Micrologix (Rockwell Automation)
- 1756-enbt (Rockwellautomation)
- 1756-eweb (Rockwellautomation)
- 1768-enbt (Rockwellautomation)
- 1768-eweb (Rockwellautomation)
- 1794-aentr Flex I/o Ethernet/ip Adapter (Rockwellautomation)
- Compactlogix (Rockwellautomation)
- Compactlogix Controllers (Rockwellautomation)
- Compactlogix L32e Controller (Rockwellautomation)
- Compactlogix L35e Controller (Rockwellautomation)
- Controllogix (Rockwellautomation)
- Controllogix Controllers (Rockwellautomation)
- Flexlogix 1788-enbt Adapter (Rockwellautomation)
- Guardlogix (Rockwellautomation)
- Guardlogix Controllers (Rockwellautomation)
- Micrologix (Rockwellautomation)
- Softlogix (Rockwellautomation)
- Softlogix Controllers (Rockwellautomation)
References
- http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102
- 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
- https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03
- http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf