Multiple Kubernetes Ingress NGINX Controller Vulnerabilities in Insights Hub Private Cloud
Act Now9.8SSA-817234Apr 8, 2025
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary
Insights Hub Private Cloud is affected by multiple vulnerabilities in Ingress NGINX Controller for Kubernetes that could lead to arbitrary code execution in the context of the ingress-nginx controller, disclosure of Secrets accessible to the controller, or denial of service. The vulnerabilities stem from improper input validation (CWE-20) and insecure object initialization (CWE-653). Siemens has released a new version and recommends updating to the latest version. Contact Siemens customer support to receive patch and update information.
What this means
What could happen
An attacker with network access to your Insights Hub Private Cloud could run arbitrary code in the Kubernetes ingress controller, potentially exposing stored credentials and secrets or disrupting application traffic routing to all systems behind that ingress.
Who's at risk
Organizations running Siemens Insights Hub Private Cloud on Kubernetes should prioritize this issue. This affects any facility or enterprise using Insights Hub for asset management, operational intelligence, or data integration in cloud environments, including water utilities, electric utilities, manufacturing plants, and any organization relying on Kubernetes ingress for API or web application routing.
How it could be exploited
An attacker sends a malformed request to the Ingress NGINX Controller endpoint (typically exposed on port 80/443). Due to improper input validation (CWE-20), the controller processes the request unsafely, allowing code injection or deserialization of untrusted data, leading to remote code execution within the Kubernetes cluster.
Prerequisites
- Network access to the Insights Hub Private Cloud Ingress NGINX Controller (typically port 80/443)
- The controller is exposed or accessible from the attacker's network segment
remotely exploitableno authentication requiredlow complexityhigh EPSS score (90.3%)no patch available (contact vendor)affects containerized control systems
Exploitability
High exploit probability (EPSS 90.3%)
Affected products (1)
ProductAffected VersionsFix Status
Insights Hub Private CloudAll versionsNo fix yet
Remediation & Mitigation
0/4
Do now
0/3HOTFIXContact Siemens customer support immediately to obtain and deploy the patched version of Insights Hub Private Cloud
WORKAROUNDRestrict network access to the Insights Hub Private Cloud Ingress NGINX Controller using firewall rules; limit inbound traffic to only trusted client IP ranges
HARDENINGMonitor ingress controller logs for malformed requests or unusual traffic patterns that may indicate exploitation attempts
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HARDENINGImplement network segmentation to isolate Kubernetes infrastructure from general corporate networks and untrusted systems
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