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IGSS (Interactive Graphical SCADA System)

Monitor6.5SEVD-2021-348-01Dec 14, 2021
Attack VectorNetwork
Auth RequiredNone
ComplexityHigh
User InteractionNone needed
Summary

Schneider Electric IGSS (Interactive Graphical SCADA System) Data Collector module (dc.exe) versions 15.0.0.21320 and prior contain multiple vulnerabilities related to buffer overflow (CWE-120) and missing authentication (CWE-306). These vulnerabilities allow an attacker with network access to inject code, corrupt data integrity, or cause denial of service, preventing proper monitoring and control of industrial processes. IGSS communicates with industry-standard PLC drivers and is critical to operations in energy and manufacturing sectors.

What this means
What could happen
An attacker could compromise the integrity of SCADA data or disrupt monitoring and control functions, potentially preventing operators from controlling industrial processes or seeing accurate plant status.
Who's at risk
Energy utilities and manufacturing plants running Schneider Electric IGSS for SCADA monitoring and control should prioritize this. The IGSS Data Collector is the critical module that handles data collection from PLCs and industrial devices—if it is compromised, operator visibility and control of the entire process could be lost.
How it could be exploited
An attacker with network access to the IGSS Data Collector (dc.exe) process can exploit buffer overflow or missing authentication checks to inject malicious code or trigger a denial of service condition, disrupting SCADA operations on that machine.
Prerequisites
  • Network access to the IGSS Data Collector module (port/protocol not specified in advisory)
  • IGSS version 15.0.0.21320 or earlier installed and running
remotely exploitablelow complexityno authentication requiredaffects SCADA/process control
Exploitability
Moderate exploit probability (EPSS 3.3%)
Affected products (1)
ProductAffected VersionsFix Status
IGSS Data Collector (dc.exe) V15.0.0.21320 and prior≤ 15.0.0.2132015.0.0.21321
Remediation & Mitigation
0/4
Do now
0/1
WORKAROUNDIf upgrading is not immediately possible, isolate the IGSS Data Collector machine from untrusted networks using firewall rules to restrict inbound access
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpgrade IGSS Data Collector to version 15.0.0.21321 or later
Long-term hardening
0/2
HARDENINGTest patches in a non-production environment before applying to operational systems
HARDENINGMaintain backups of IGSS configuration and data before patching
View full Schneider Electric advisory
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