flow.php页面看似intval的红包ID,其实可以注入。以下文章仅从代码推测,并未进行测试,不过这太明显了,就不测试了,各位看官测试失败请跟帖骂娘,死亡节奏技术小组、恶灵战队路过。
/flow.php 1168行开始
$bonus = bonus_info(intval($_GET['bonus']));
if ((!empty($bonus) && $bonus['user_id'] == $_SESSION['user_id']) || $_GET['bonus'] == 0)
{
$order['bonus_id'] = $_GET['bonus'];
}
else
{
$order['bonus_id'] = 0;
$result['error'] = $_LANG['invalid_bonus'];
}
/* 计算订单的费用 */
$total = order_fee($order, $cart_goods, $consignee);
$bonus = bonus_info(intval($_GET[‘bonus’]));
上面这一句貌似把$_GET[‘bonus’]给变整形了,没错,这句话没问题,继续向下看,
if ((!empty($bonus) && $bonus['user_id'] == $_SESSION['user_id']) || $_GET['bonus'] == 0)
{
$order['bonus_id'] = $_GET['bonus'];
}
上面代码显示:如果通过GET来的红包ID获取到红包信息并且红包属于你,
就执行下面这句
$order['bonus_id'] = $_GET['bonus'];
看到没有,这里$order[‘bonus_id’]就获得了一个没有过滤的红包ID,
然后
下面这句
/* 计算订单的费用 */
$total = order_fee($order, $cart_goods, $consignee);
未经过滤的红包ID进入了order_fee函数,来看看这个函数的代码(在/includes/lib_order.php中),
function order_fee($order, $goods, $consignee)
{
//.....省略若干行,来到643行,
if (!empty($order['bonus_id']))
{
$bonus = bonus_info($order['bonus_id']);
$total['bonus'] = $bonus['type_money'];
}
}
未经过滤的红包ID再次进入bonus_info函数,这个函数也是在上面的这个文件里,
来到1408行
function bonus_info($bonus_id, $bonus_sn = '')
{
$sql = "SELECT t.*, b.* " .
"FROM " . $GLOBALS['ecs']->table('bonus_type') . " AS t," .
$GLOBALS['ecs']->table('user_bonus') . " AS b " .
"WHERE t.type_id = b.bonus_type_id ";
if ($bonus_id > 0)
{
$sql .= "AND b.bonus_id = '$bonus_id'";
}
else
{
$sql .= "AND b.bonus_sn = '$bonus_sn'";
}
return $GLOBALS['db']->getRow($sql);
}
恰好,字符串大于0,因此注入字符串可以顺利进入SQL,好了,恭喜发财,rank值多给点
就不证明,自己看代码