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Siemens Spectrum Power 4

Monitor5.4ICS-CERT ICSA-22-041-06Feb 8, 2022
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary

A Cross-Site Scripting (XSS) vulnerability exists in the integrated web application "Online Help" feature of Siemens Spectrum Power 4 versions prior to 4.70 SP9 Security Patch 1. An attacker could inject malicious JavaScript code that executes in the operator's browser when they interact with affected web content, potentially leading to credential theft or unauthorized system actions.

What this means
What could happen
An attacker could inject malicious JavaScript into the Spectrum Power 4 web interface, which could steal credentials or trick operators into performing unintended actions affecting grid operations.
Who's at risk
Operators and engineers at electric utilities, transmission system operators (TSOs), and distribution system operators (DSOs) who use Siemens Spectrum Power 4 for grid management and monitoring are affected. The vulnerability impacts the web-based configuration and monitoring interface used to manage power system operations.
How it could be exploited
An attacker crafts a malicious link containing JavaScript code and sends it to an operator. When the operator clicks the link while logged into the Spectrum Power 4 web interface, the malicious code executes in their browser context, potentially capturing credentials or hijacking their session to make unauthorized configuration changes.
Prerequisites
  • Operator must click a malicious link while actively using the Spectrum Power 4 web interface
  • Attacker must be able to deliver the link to the operator (email, chat, etc.)
  • The web interface must be accessible to the operator
remotely exploitableuser interaction requiredlow CVSS score but affects operational technologyaffects critical grid operations
Exploitability
Low exploit probability (EPSS 0.3%)
Affected products (1)
ProductAffected VersionsFix Status
Spectrum Power 4<V4.70 SP9 Security Patch 14.70 SP9 Security Patch 1
Remediation & Mitigation
0/4
Do now
0/1
WORKAROUNDTrain operators not to click unknown or untrusted links while working in Spectrum Power 4
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate Spectrum Power 4 to version 4.70 SP9 Security Patch 1 or later
Long-term hardening
0/2
HARDENINGRestrict network access to the Spectrum Power 4 web interface using firewalls or VPN; ensure it is not reachable directly from the Internet
HARDENINGImplement network segmentation to isolate critical power system networks from the business network
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