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

• rockwellautomation controllogix controllers (<= 20) • rockwellautomation guardlogix controllers (<= 20) • rockwellautomation micrologix (<= 1100) • rockwellautomation micrologix (<= 1400) • 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)