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CVE-2012-6440

Rockwell Automation ControlLogix PLC Improper Input Validation

Published: Jan 24, 2013Updated: Jun 3, 2026 Sources: CVE List NVD csafCWE-287
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
8.1%
Top 5.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

The Web server password authentication mechanism used by the products is vulnerable to a MitM and Replay attack. Successful exploitation of this vulnerability will allow unauthorized access of the product’s Web server to view and alter product configuration and diagnostics information. 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

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-287

Affected Products

1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modulesRockwell AutomationICS / OT / IoT
CompactLogix L32E and L35E controllersRockwell AutomationICS / OT / IoT
1788-ENBT FLEXLogix adapterRockwell AutomationICS / OT / IoT
1794-AENTR FLEX I/O EtherNet/IP adapterRockwell AutomationICS / OT / IoT
ControlLogix, CompactLogix, GuardLogix, and SoftLogixRockwell AutomationICS / OT / IoT
rockwell automationcommercialUSICS / OT / IoTaka arena®, arena simulation, armorstart st
and 20 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Initial Access
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References

https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03
cisa.gov
https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154
rockwellautomation.custhelp.com
https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155
rockwellautomation.custhelp.com
and 12 more references View all →

Timeline

Published
Jan 24, 2013
Last Updated
Jun 3, 2026

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