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PBBoard CMS SQL Injection Vulnerability
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Vulnerability title: SQL Injection in PBBoard CMS CVE: CVE-2014-9215 CMS: PBBoard Vendor: Power bulletin board - http://www.pbboard.info/ Product: http://sourceforge.net/projects/pbboard/files/PBBoard_v3.0.1/PBBoard_v3.0.1.zip/download Affected version: Version 3.0.1 (updated on 13/09/2014) and before. Fixed version: Version 3.0.1 (updated on 28/11/2014) Google dork: intext:Powered By PBBoard Reported by: Tran Dinh Tien - [email protected] Credits to ITAS Team - www.itas.vn :: DESCRITION :: Multiple SQL injection vulnerabilities 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 URLs and parameters have been confirmed to suffer from SQL injection. :: DETAILS :: Attack vector Link 1: POST /index.php?page=register&checkemail=1 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: */* Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Content-Type: application/x-www-form-urlencoded; charset=UTF-8 X-Requested-With: XMLHttpRequest Referer: http://target.org/index.php?page=register&index=1&agree=1 Content-Length: 29 Cookie: PowerBB_lastvisit=1417086736; PHPSESSID=j0f7fuju2tu2ip7jrlgq6m56k4 Connection: keep-alive Pragma: no-cache Cache-Control: no-cache email=<SQL Injection Here>&ajax=1 Link 2: POST /index.php?page=forget&start=1 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 Referer: http://target.org/index.php?page=forget&index=1 Cookie: PowerBB_lastvisit=1417086736; PHPSESSID=j0f7fuju2tu2ip7jrlgq6m56k4 Connection: keep-alive Content-Type: application/x-www-form-urlencoded Content-Length: 52 code=0ae4e&email=<SQL Injection Here>&submit_forget=Save link 3: POST /index.php?page=forget&send_active_code=1 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 Referer: http://target.org/index.php?page=forget&active_member=1&send_active_code=1 Cookie: PowerBB_lastvisit=1417086736; PHPSESSID=j0f7fuju2tu2ip7jrlgq6m56k4 Connection: keep-alive Content-Type: application/x-www-form-urlencoded Content-Length: 57 code=13709&email=<SQL Injection Here>&submit_active_code=Save :: CODE DETAIL :: - Vulnerable parameter: email - Vulnerable file: includes/functions.class.php - Vulnerable function: CheckEmail($email) - Vulnerable code: function CheckEmail($email) { return preg_match('#^[a-z0-9.!\#$%&\'*+-/=?^_`{|}~]+@([0-9.]+|([^\s\'"<>@,;]+\.+[a-z]{2,6}))$#si', $email) ? true : false; } - Fix code: function CheckEmail($email) { // First, we check that there's one @ symbol, and that the lengths are right if (!preg_match("/^[^@]{1,64}@[^@]{1,255}$/", $email)) { // Email invalid because wrong number of characters in one section, or wrong number of @ symbols. return false; } if (@strstr($email,'"') or @strstr($email,"'") or @strstr($email,'>') or @strstr($email,'<') or @strstr($email,'*') or @strstr($email,'%') or @strstr($email,'$') or @strstr($email,'#') or @strstr($email,'+') or @strstr($email,'^') or @strstr($email,'&') or @strstr($email,',') or @strstr($email,'~') or @strstr($email,'!') or @strstr($email,'{') or @strstr($email,'}') or @strstr($email,'(') or @strstr($email,')') or @strstr($email,'/')) { return false; } // Split it into sections to make life easier $email_array = explode("@", $email); $local_array = explode(".", $email_array[0]); for ($i = 0; $i < sizeof($local_array); $i++) { if (!preg_match("/^(([A-Za-z0-9!#$%&'*+\/=?^_`{|}~-][A-Za-z0-9!#$%&'*+\/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$/", $local_array[$i])) { return false; } } if (!preg_match("/^\[?[0-9\.]+\]?$/", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name $domain_array = explode(".", $email_array[1]); if (sizeof($domain_array) < 2) { return false; // Not enough parts to domain } for ($i = 0; $i < sizeof($domain_array); $i++) { if (!preg_match("/^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$/", $domain_array[$i])) { return false; } } } return true; } :: SOLUTION :: Version 3.0.1 (updated on 28/11/2014) :: DISCLOSURE :: - 11/27/2014: Inform the vendor - 11/28/2014: Vendor confirmed - 11/28/2014: Vendor releases patch # 0day.today [2024-07-01] #