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Historian Server Attack Detection — API Reference

Common Historian Platforms

Platform Vendor Default Port
PI Data Archive OSIsoft/AVEVA 5457
PI Web API OSIsoft/AVEVA 443/5459
Wonderware Historian AVEVA 1433 (SQL)
FactoryTalk Historian Rockwell 1433 (SQL)
Ignition Gateway Inductive Automation 8088
iFIX Historian GE Digital 5051

OSIsoft PI Web API Endpoints

Method Endpoint Description
GET /piwebapi/system System information and version
GET /piwebapi/points List PI data points
GET /piwebapi/streams/{webId}/value Get current point value
GET /piwebapi/streams/{webId}/recorded Get historical recorded values
GET /piwebapi/dataservers List configured data servers

Ignition Gateway Endpoints

Endpoint Description
/StatusPing Gateway health check
/system/gwinfo Gateway system information
/system/webdev Web development module
/main/web/status Gateway status page

Attack Indicators

Indicator Description Severity
Anonymous API access PI Web API accessible without auth CRITICAL
Bulk data read >10,000 points read in single session CRITICAL
Brute force login >5 failed logins from same IP HIGH
Exposed gateway info Ignition/PI info pages publicly accessible HIGH
SQL injection on historian DB Direct SQL queries to historian backend CRITICAL

External References