SCADA IDS Signatures (SIS)

CRITIFENCE® SCADA IDS Signatures Database (SIS)

Reset 1756-ENBT module Attempt

Date Title Author SVE-ID
2016-03-03Reset 1756-ENBT module AttemptRockwell AutomationN/A
Description
This rule was developed by Rockwell Automation in response to vulnerabilities identified in Project Basecamp. Attack: Reset 1756-ENBT module Impact: Resets the EtherNET/IP module. // CIP - Unconnected send // Service: 0x5 (RESET) // Class: 0x01 (Identity Manager) unsigned char packetResetEth[]= "\x00\x00\x00\x00\x00\x04\x02\x00\x00\x00\x00\x00\xb2\x00\x08\x00" "\x05\x03\x20\x01\x24\x01\x30\x03";

Signature

						
							
								
alert tcp any any -> $ENIP_SERVER 44818 (msg:"ROCKWELL Automation ControlLogix EtherNET/IP reset command Denial Of Service (ResetEth)";
 flow:to_server;
 content:"|6f 00|";
 offset:0;
 depth:2;
 content:"|00 00 00 00|";
 distance:22;
 within:4;
 byte_extract:2,2,count,relative,multiplier 4,little;
 content:"|b2 00|";
 distance:0;
 within:count;
 content:"|05|";
 distance:2;
 within:1;
 content:"|20 01|";
 distance:1;
 within:2;
 classtype:attempted-dos;
 reference:osvdb,78491;
 reference:secunia,47737;
 sid:1111689;
 rev:1;
)