CVE-2025-2787
📋 TL;DR
This vulnerability in KNIME Business Hub's ingress-nginx component allows authenticated attackers to potentially execute arbitrary code within the Kubernetes cluster. It affects all KNIME Business Hub deployments using vulnerable ingress-nginx versions. The risk is reduced since exploitation requires authenticated access to the cluster.
💻 Affected Systems
- KNIME Business Hub
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete takeover of the Kubernetes cluster, allowing full control over all cluster resources and workloads.
Likely Case
Privilege escalation within the cluster, allowing attackers to access sensitive data or deploy malicious workloads.
If Mitigated
Limited impact due to authentication requirements and network segmentation controls.
🎯 Exploit Status
Exploitation requires authenticated access to the Kubernetes cluster and knowledge of the ingress-nginx vulnerability CVE-2025-1974.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: KNIME Business Hub 1.13.3+, 1.12.4+, 1.11.4+, or 1.10.4+
Vendor Advisory: https://www.knime.com/security-advisory-cve-2025-2787
Restart Required: No
Instructions:
1. Backup your KNIME Business Hub configuration and data. 2. Update to one of the patched versions: 1.13.3+, 1.12.4+, 1.11.4+, or 1.10.4+. 3. Verify the update completed successfully. 4. Monitor for any issues post-update.
🔧 Temporary Workarounds
Apply ingress-nginx CVE-2025-1974 workarounds
allImplement workarounds specific to the underlying ingress-nginx vulnerability CVE-2025-1974
🧯 If You Can't Patch
- Implement strict network segmentation to limit access to the ingress-nginx component
- Enforce strong authentication and authorization controls for cluster access
🔍 How to Verify
Check if Vulnerable:
Check your KNIME Business Hub version against affected versions. If below 1.13.3, 1.12.4, 1.11.4, or 1.10.4, you are vulnerable.Check Version:
Check KNIME Business Hub admin interface or deployment configuration for version information.Verify Fix Applied:
Verify KNIME Business Hub version is 1.13.3+, 1.12.4+, 1.11.4+, or 1.10.4+ after update.📡 Detection & Monitoring
Log Indicators:
- Unusual ingress-nginx configuration changes
- Suspicious requests to ingress-nginx endpoints
- Unexpected pod creation or privilege escalation attempts
Network Indicators:
- Unusual traffic patterns to/from ingress-nginx services
- Suspicious internal cluster communications
SIEM Query:
Search for ingress-nginx configuration modifications or privilege escalation attempts in Kubernetes audit logs