Vulnerability Details CVE-2012-6436
The device does not properly validate the data being sent to the buffer. An attacker can send a malformed CIP packet to Port 2222/TCP, Port 2222/UDP, Port 44818/TCP, or Port 44818/UDP, which creates a buffer overflow and causes the CPU to crash. Successful exploitation of this vulnerability could cause loss of availability and a disruption in communications 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
Exploit prediction scoring system (EPSS) score
EPSS Score 0.191
EPSS Ranking 95.0%
CVSS Severity
CVSS v2 Score 7.8
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
Products affected by CVE-2012-6436
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cpe:2.3:a:rockwellautomation:controllogix_controllers:*
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cpe:2.3:a:rockwellautomation:guardlogix_controllers:*
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cpe:2.3:a:rockwellautomation:micrologix:*
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cpe:2.3:a:rockwellautomation:softlogix_controllers:*
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cpe:2.3:h:rockwellautomation:1756-enbt:-
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cpe:2.3:h:rockwellautomation:1756-eweb:-
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cpe:2.3:h:rockwellautomation:1768-enbt:-
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cpe:2.3:h:rockwellautomation:1768-eweb:-
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cpe:2.3:h:rockwellautomation:1794-aentr_flex_i/o_ethernet/ip_adapter:-
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cpe:2.3:h:rockwellautomation:compactlogix:*
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cpe:2.3:h:rockwellautomation:compactlogix_controllers:*
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cpe:2.3:h:rockwellautomation:compactlogix_l32e_controller:-
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cpe:2.3:h:rockwellautomation:compactlogix_l35e_controller:-
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cpe:2.3:h:rockwellautomation:controllogix:*
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cpe:2.3:h:rockwellautomation:flexlogix_1788-enbt_adapter:-
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cpe:2.3:h:rockwellautomation:guardlogix:*
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cpe:2.3:h:rockwellautomation:softlogix:*