CVE-2022-2431
Download Manager に報告された脆弱性
概要
The Download Manager plugin for WordPress is vulnerable to arbitrary file deletion in versions up to, and including 3.2.50. This is due to insufficient file type and path validation on the deleteFiles() function found in the ~/Admin/Menu/Packages.php file that triggers upon download post deletion. This makes it possible for contributor level users and above to supply an arbitrary file path via the 'file[files]' parameter when creating a download post and once the user deletes the post the supplied arbitrary file will be deleted. This can be used by attackers to delete the /wp-config.php file which will reset the installation and make it possible for an attacker to achieve remote code execution on the server.
影響を受けるバージョン
- 3.2.50 以下
対処方法
Download Manager を 3.2.51 以降に更新してください。これで本脆弱性は解消します。
この脆弱性は実証コードが公開されています。攻撃に利用されやすい状態のため、優先して対応してください。
あなたのサイトは大丈夫ですか？
URLを入力するだけで、実際に使われているプラグインを検出し、 このデータベースと突き合わせて既知の脆弱性が残っていないかを確認できます。登録不要・無料です。
30秒で無料診断する参照
- https://packetstormsecurity.com/files/167920/wpdownloadmanager3250-filedelete.txt
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2762092%40download-manager&new=2762092%40download-manager&sfp_email=&sfph_mail=
- https://www.wordfence.com/blog/2022/08/high-severity-vulnerability-patched-in-download-manager-plugin/
- https://packetstormsecurity.com/files/167920/wpdownloadmanager3250-filedelete.txt
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2762092%40download-manager&new=2762092%40download-manager&sfp_email=&sfph_mail=
- https://www.wordfence.com/blog/2022/08/high-severity-vulnerability-patched-in-download-manager-plugin/