CVE-2025-54469
📋 TL;DR
This CVE describes a command injection vulnerability in NeuVector's enforcer container where environment variables CLUSTER_RPC_PORT and CLUSTER_LAN_PORT are used unsanitized in shell commands via popen. This allows authenticated attackers with access to the container environment to execute arbitrary commands with container privileges. Organizations running vulnerable NeuVector deployments are affected.
💻 Affected Systems
- NeuVector
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full container compromise leading to cluster-wide privilege escalation, data exfiltration, or complete Kubernetes cluster takeover via lateral movement.
Likely Case
Container escape and execution of arbitrary commands within the enforcer container, potentially compromising the NeuVector security system itself.
If Mitigated
Limited impact if proper network segmentation, container security policies, and least privilege principles are enforced.
🎯 Exploit Status
Exploitation requires ability to set environment variables in the enforcer container, which typically requires cluster access or compromised pod.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific fixed versions
Vendor Advisory: https://github.com/neuvector/neuvector/security/advisories/GHSA-c8g6-qrwh-m3vp
Restart Required: Yes
Instructions:
1. Review vendor advisory for fixed versions. 2. Update NeuVector to patched version. 3. Restart enforcer containers. 4. Verify environment variable sanitization is in place.
🔧 Temporary Workarounds
Restrict Environment Variable Access
linuxPrevent unauthorized modification of CLUSTER_RPC_PORT and CLUSTER_LAN_PORT environment variables
kubectl set env deployment/neuvector-enforcer -c enforcer CLUSTER_RPC_PORT=<fixed_value>
kubectl set env deployment/neuvector-enforcer -c enforcer CLUSTER_LAN_PORT=<fixed_value>
Container Security Context Hardening
linuxApply strict security contexts to limit container capabilities
kubectl patch deployment neuvector-enforcer --type='json' -p='[{"op": "add", "path": "/spec/template/spec/containers/0/securityContext", "value": {"allowPrivilegeEscalation": false, "capabilities": {"drop": ["ALL"]}, "readOnlyRootFilesystem": true}}]'
🧯 If You Can't Patch
- Implement network segmentation to isolate NeuVector components from untrusted workloads
- Apply Kubernetes Pod Security Standards (PSS) with restricted profile to enforcer containers
🔍 How to Verify
Check if Vulnerable:
Check if environment variables are being used unsanitized in popen calls in the enforcer container codeCheck Version:
kubectl get pods -l app=neuvector-enforcer -o jsonpath='{.items[*].spec.containers[*].image}'Verify Fix Applied:
Verify that CLUSTER_RPC_PORT and CLUSTER_LAN_PORT values are properly validated/sanitized before use in shell commands📡 Detection & Monitoring
Log Indicators:
- Unusual shell command execution from enforcer container
- Suspicious environment variable modifications
- Unexpected process spawns from enforcer
Network Indicators:
- Unexpected outbound connections from enforcer containers
- Port scanning activity originating from enforcer
SIEM Query:
process.name="sh" AND parent.process.name="enforcer" AND cmdline CONTAINS "CLUSTER_"