CVE-2012-6436 — Rockwell Automation ControlLogix PLC Improper Input Validation

Description (CNA)

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 (CNA)

Vendor / product	Versions
Rockwell Automation / 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules	affected All
Rockwell Automation / CompactLogix L32E and L35E controllers	affected All
Rockwell Automation / 1788-ENBT FLEXLogix adapter	affected All
Rockwell Automation / 1794-AENTR FLEX I/O EtherNet/IP adapter	affected All
Rockwell Automation / ControlLogix, CompactLogix, GuardLogix, and SoftLogix	affected 0 through 18
Rockwell Automation / CompactLogix and SoftLogix controllers	affected 0 through 19
Rockwell Automation / ControlLogix and GuardLogix controllers	affected 0 through 20
Rockwell Automation / MicroLogix	affected 1100; affected 1400

CWE

CWE-119

References

ADP enrichment

CVE

No English description supplied.

http://www.us-cert.gov/control_systems/pdf/ICSA-13-011-03.pdf

CISA-ADP

No English description supplied.

No references supplied.