CVE-2022-2436
Download Manager に報告された脆弱性
概要
The Download Manager plugin for WordPress is vulnerable to deserialization of untrusted input via the 'file[package_dir]' parameter in versions up to, and including 3.2.49. This makes it possible for authenticated attackers with contributor privileges and above to call files using a PHAR wrapper that will deserialize the data and call arbitrary PHP Objects that can be used to perform a variety of malicious actions granted a POP chain is also present. It also requires that the attacker is successful in uploading a file with the serialized payload.
影響を受けるバージョン
- 3.2.50 未満
対処方法
Download Manager を 3.2.50 以降に更新してください。これで本脆弱性は解消します。
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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://plugins.trac.wordpress.org/browser/download-manager/trunk/src/Admin/Menu/Packages.php#L68
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2761422%40download-manager%2Ftrunk%2Fsrc%2FAdmin%2FMenu%2FPackages.php&new=2761422%40download-manager%2Ftrunk%2Fsrc%2FAdmin%2FMenu%2FPackages.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/471957f6-54c1-4268-b2e1-8efa391dcaec?source=cve
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2436
- https://plugins.trac.wordpress.org/browser/download-manager/trunk/src/Admin/Menu/Packages.php#L68
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2761422%40download-manager%2Ftrunk%2Fsrc%2FAdmin%2FMenu%2FPackages.php&new=2761422%40download-manager%2Ftrunk%2Fsrc%2FAdmin%2FMenu%2FPackages.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/471957f6-54c1-4268-b2e1-8efa391dcaec?source=cve
- https://www.wordfence.com/vulnerability-advisories/#CVE-2022-2436