"value":"An attacker with the ability to modify a user program may change user program code on some ControlLogix, CompactLogix, and GuardLogix Control systems. Studio 5000 Logix Designer writes user-readable program code to a separate location than the executed compiled code, allowing an attacker to change one and not the other."
"value":"The following mitigations should be applied for ControlLogix 5560, ControlLogix 5570, ControlLogix 5580 series, GuardLogix 5570, GuardLogix 5580, GuardLogix 5380, CompactLogix, CompactLogix 5380 devices:\n\nRisk Mitigation A:\n\nRecompile and download user program code (i.e., acd).\nPut controller mode switch into Run position.\nIf keeping controller mode switch in Run is impractical, use the following mitigation:\n\nRecompile and download user program code (i.e., acd).\nMonitor controller change log for any unexpected modifications or anomalous activity.\nUtilize the Controller Log feature.\nUtilize Change Detection in the Logix Designer Application.\nIf available, use the functionality in FactoryTalk AssetCenter software to detect changes.\nRisk Mitigation B:\n\nImplement CIP Security to help prevent unauthorized connections when properly deployed. Supported controllers and communications modules include:\n\nControlLogix 5580 processors using on-board EtherNet/IP port.\nGuardLogix 5580 processors using on-board EtherNet/IP port.\nControlLogix 5580 processors operating in High Availability (HA) configurations using 1756-EN4TR\nControlLogix 5560, ControlLogix 5570, ControlLogix 5580, GuardLogix 5570 and GuardLogix 5580 can use a 1756-EN4TR ControlLogix EtherNet/IP module.\nIf using a 1756-EN2T, then replace with a 1756-EN4TR\nCompactLogix 5380 using on-board EtherNet/IP port.\nCompactLogix GuardLogix 5380 using on-board EtherNet/IP port.\nThe following mitigations should be applied for 1768 CompactLogix, 1769 CompactLogix, CompactLogix 5370, and CompactLogix 5480 devices:\n\nRecompile and download user program code (i.e., acd).\nPut controller mode switch into Run position.\nIf keeping controller mode switch in Run is impractical, then use the following mitigation:\n\nRecompile and download user program code (i.e., acd).\nMonitor controller change log for any unexpected modifications or anomalous activity.\nUse the Controller Log feature.\nUse Change Detection in the Logix Designer application.\nIf available, use the functionality in FactoryTalk AssetCenter to detect changes."