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OpenAdvisories
High · 8.5 CVE-2012-6439 EUVD-2012-6292GHSA-7q92-phh3-9wp8

Rockwell Automation ControlLogix PLC Improper Access Control

Published Jan 24, 2013 · Updated Jun 30, 2025 · Assigned by icscert

Vendor: Rockwell Automation Product: 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules Product: 1788-ENBT FLEXLogix adapter Product: 1794-AENTR FLEX I/O EtherNet/IP adapter Product: CompactLogix and SoftLogix controllers Product: CompactLogix L32E and L35E controllers Product: ControlLogix and GuardLogix controllers Product: ControlLogix, CompactLogix, GuardLogix, and SoftLogix Product: MicroLogix Category: ICS / OT

Description

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 changes the product’s configuration and network
parameters, a DoS condition 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

Affected products

VendorProductAffectedFixed
Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules All —
Rockwell Automation CompactLogix L32E and L35E controllers All —
Rockwell Automation 1788-ENBT FLEXLogix adapter All —
Rockwell Automation 1794-AENTR FLEX I/O EtherNet/IP adapter All —
Rockwell Automation ControlLogix, CompactLogix, GuardLogix, and SoftLogix ≤ 18 —
Rockwell Automation CompactLogix and SoftLogix controllers ≤ 19 —
Rockwell Automation ControlLogix and GuardLogix controllers ≤ 20 —
Rockwell Automation MicroLogix 1100, 1400 —

Advisories 1

References