UsualToolcms 8.0 系统重装漏洞

一、漏洞简介

无验证, 在安装cms完成后 并不会自动删除文件 又不会生成lock来判断是否安装过了。 导致了可以直接重装过 setup/index.php 安装地址

二、漏洞影响

UsualToolCMS大众版5.0

UsualToolcms 8.0

三、复现过程

<?php
$t=$_GET["t"];
$l=$_GET["l"];
$dbcontent=file_get_contents("../sql_db.php");
if($t=="db"){
$sqlcontent=$_POST["sqlcontent"];
file_put_contents("../sql_db.php",$sqlcontent);
echo "<script>alert('数据库设置成功!');window.location.href='?l=sql'</script>";
}
if($t=="testdb"){
$dbhost=$_POST["dbhost"];
$dbname=$_POST["dbname"];
$dbuser=$_POST["dbuser"];
$dbpass=$_POST["dbpass"];
$mysqli=new mysqli($dbhost,$dbuser,$dbpass,$dbname);
echo "<script>alert('测试完成!".$mysqli->connect_error."');window.location.href='?l=sqlback'</script>";
}
if($t=="sqlback"){
include('../sql_db.php');
$sqlcontent=$_POST['sqlcontent'];
$res=$mysqli -> multi_query($sqlcontent);
echo "<script>alert('数据库结构规划完成!');window.location.href='?l=setup'</script>";
}
if($t=="update"){
include('../sql_db.php');
$authcode=$_POST["authcode"];$webname=$_POST["webname"];
$weblogo=$_POST["weblogo"];
$weburl=$_POST["weburl"];
$template=$_POST["template"];
$webisclose=$_POST["webisclose"];
$develop=$_POST["develop"];
$articlelistnum=$_POST["articlelistnum"];
$indexarticlenum=$_POST["indexarticlenum"];
$indexarticlerenum=$_POST["indexarticlerenum"];
$articlehitnum=$_POST["articlehitnum"];
$goodslistnum=$_POST["goodslistnum"];
$indexgoodsnum=$_POST["indexgoodsnum"];
$indexgoodsrenum=$_POST["indexgoodsrenum"];
$goodshitnum=$_POST["goodshitnum"];
$article=$_POST["article"];
$goods=$_POST["goods"];
$messagebook=$_POST["messagebook"];
$orders=$_POST["orders"];
$members=$_POST["members"];
$usercookname=$_POST["usercookname"];
$sqls="INSERT INTO `cms_setup` (authcode,webname,weblogo,weburl,template,webisclose,develop,articlelistnum,indexarticlenum, indexarticlerenum,articlehitnum,goodslistnum,indexgoodsnum,indexgoodsrenum,goodshitnum,article,goods,messagebook,orders,members,usercookname,installtime) VALUES ('$authcode','$webname','$weblogo','$weburl','$template','$webisclose','$develop','$articlelistnum','$indexarticlenum','$indexarticlerenum','$articlehitnum','$goodslistnum','$indexgoodsnum','$indexgoodsrenum','$goodshitnum','$article','$goods','$messagebook','$orders','$members','$usercookname',now())";
if ($mysqli->query($sqls) == TRUE) {
echo "<script>alert('基础设置完成!');window.location.href='?l=welcome'</script>";
}else{
echo "<script>alert('未设置成功!请重填!');window.location.href='?l=setup'</script>";
}
}?>

UsualToolcsm需要先设置数据库账号密码才可以安装sql_db.php文件。

这边是判断数据库连接是否成功，

如果成功执行下一步，

如果不成功反回未设置成功!请重填

p:437-438

成功安装以后反回一个默认账号密码

echo"<li><span>后台默认账号: </span>usualtool</li>";
echo"<li><span>后台默认密码: </span>123456</li>";

直接下一步就可以因为sql_db.php是提前设置好账号密码的

http://0-sec.org/UsualToolCMS/setup/