Rockwell Automation ControlLogix PLC Improper Input Validation
Vulnerability 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
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This vulnerability was discovered by Rockwell Automation engineers as they were investigating other vulnerabilities reported at the Digital Bond S4 2012 Conference.
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-13-011-03
- https://rockwellautomation.custhelp.com/app/answers/detail/a_id/470154
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470155
- https://rockwellautomation.custhelp.com/app/answers/detail/aid/470156
- http://rockwellautomation.custhelp.com/app/answers/detail/a_id/54102
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