* [Blog](https://www.paloaltonetworks.com/blog) * [Security Operations](https://www.paloaltonetworks.com/blog/security-operations/) * [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must/?lang=ja) * log4j の脆弱性への対応を自動化・迅速化する方... # log4j の脆弱性への対応を自動化・迅速化する方法 [](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.paloaltonetworks.com%2Fblog%2Fsecurity-operations%2Fautomating-speeding-your-response-to-log4j-vulnerability%2F%3Flang%3Dja) [](https://twitter.com/share?text=log4j+%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%82%92%E8%87%AA%E5%8B%95%E5%8C%96%E3%83%BB%E8%BF%85%E9%80%9F%E5%8C%96%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95&url=https%3A%2F%2Fwww.paloaltonetworks.com%2Fblog%2Fsecurity-operations%2Fautomating-speeding-your-response-to-log4j-vulnerability%2F%3Flang%3Dja) [](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.paloaltonetworks.com%2Fblog%2Fsecurity-operations%2Fautomating-speeding-your-response-to-log4j-vulnerability%2F%3Flang%3Dja&title=log4j+%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%B8%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%82%92%E8%87%AA%E5%8B%95%E5%8C%96%E3%83%BB%E8%BF%85%E9%80%9F%E5%8C%96%E3%81%99%E3%82%8B%E6%96%B9%E6%B3%95&summary=&source=) [](https://www.paloaltonetworks.com//www.reddit.com/submit?url=https://www.paloaltonetworks.com/blog/security-operations/automating-speeding-your-response-to-log4j-vulnerability/?lang=ja&ts=markdown) \[\](mailto:?subject=log4j の脆弱性への対応を自動化・迅速化する方法) Link copied By [Jane Goh](https://www.paloaltonetworks.com/blog/author/jane-goh/?lang=ja&ts=markdown "Posts by Jane Goh") Dec 13, 2021 1 minutes [Must-Read Articles](https://www.paloaltonetworks.com/blog/security-operations/category/must/?lang=ja&ts=markdown) [Secure the Enterprise](https://www.paloaltonetworks.com/blog/category/secure-the-enterprise-2/?lang=ja&ts=markdown) [Threat Prevention](https://www.paloaltonetworks.com/blog/category/threat-prevention/?lang=ja&ts=markdown) [Apache Log4J](https://www.paloaltonetworks.com/blog/tag/apache-log4j-ja/?lang=ja&ts=markdown) [critical vulnerabilities](https://www.paloaltonetworks.com/blog/tag/critical-vulnerabilities-ja/?lang=ja&ts=markdown) [CVE-2021-44228](https://www.paloaltonetworks.com/blog/tag/cve-2021-44228/?lang=ja&ts=markdown) [exploit](https://www.paloaltonetworks.com/blog/tag/exploit-ja/?lang=ja&ts=markdown) [Log4J](https://www.paloaltonetworks.com/blog/tag/log4j-ja/?lang=ja&ts=markdown) [RCE](https://www.paloaltonetworks.com/blog/tag/rce/?lang=ja&ts=markdown) [vulnerabilitiy](https://www.paloaltonetworks.com/blog/tag/vulnerabilitiy/?lang=ja&ts=markdown) This post is also available in: [English (英語)](https://www.paloaltonetworks.com/blog/security-operations/automating-speeding-your-response-to-log4j-vulnerability/ "英語(English)に切り替える") [简体中文 (簡体中国語)](https://www.paloaltonetworks.com/blog/security-operations/automating-speeding-your-response-to-log4j-vulnerability/?lang=zh-hans "簡体中国語(简体中文)に切り替える") Apache log4jライブラリがあらゆるアプリケーションに利用されていることを考えると、脆弱性を悪用される前に発見・修正するのは時間との戦いとなります。 Cortex XSOARは、レスポンス自動化・迅速化に役立つ[ファーストレスポンダーキット](https://xsoar.pan.dev/marketplace/details/CVE_2021_44228)を作成しました。本稿ではそのプレイブックからいくつかの手順を紹介します。 * ***データ抽出とエンリッチメント*** : CVE-2021-44228の悪用試行が疑われる指標の収集 * ***スレットハンティング*** : SIEM、パロアルトネットワークスの Panorama、および XDR を通じた IOC検索。その対象として Splunk、QRadar を使用した振る舞い検知用の高度なハンティング、Panorama を使用した パロアルトネットワークス IPS シグネチャのハンティング、Cortex XDR を使用したサーバ上の既知の悪用パターンのハンティングなどを含む * ***修復*** : ファイアウォールのEDL経由または手動にてブロックを開始し、利用可能な検出ルールとシグネチャを収集・提示 * ***緩和***: アナリストによる詳細な調査のため、Unit42からの推奨事項とパッチへのリンクを提供 * [![Apache Log4j RCE CVE-2021-44228 Content Pack](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/12/word-image-10.png)](https://www.paloaltonetworks.com/blog/wp-content/uploads/2021/12/word-image-10.png?ts=markdown) Apache Log4j RCE CVE-2021-44228 Content Pack この脆弱性の詳細については、[Unit 42のブログ](https://unit42.paloaltonetworks.jp/apache-log4j-vulnerability-cve-2021-44228/)に掲載されています。 こちらのプレイブックのコンテンツパックは[Cortex XSOAR マーケットプレイス](https://xsoar.pan.dev/marketplace/details/CVE_2021_44228)で閲覧・ダウンロードできます。Cortex XSOARをお持ちでない方は[無償のコミュニティエディション](https://start.paloaltonetworks.com/sign-up-for-community-edition.html)をご利用いただけます。 *** ** * ** *** ## 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