NetSight
IP …
high7.5

CVE-2012-6436

The device does not properly validate the data being sent to the buffer.

Impact

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

Affected products

VendorProductAffected versions
RockwellautomationControllogix Controllers
through 20
RockwellautomationGuardlogix Controllers
through 20
RockwellautomationMicrologix
through 1100
through 1400
RockwellautomationSoftlogix Controllers
through 19
Rockwellautomation1756-Enbt
All versions
Rockwellautomation1756-Eweb
All versions
Rockwellautomation1768-Enbt
All versions
Rockwellautomation1768-Eweb
All versions
Rockwellautomation1794-Aentr Flex I\/O Ethernet\/Ip Adapter
All versions
RockwellautomationCompactlogix
through 18
RockwellautomationCompactlogix Controllers
through 19
RockwellautomationCompactlogix L32e Controller
All versions

Weakness classification

CWE-119

References