{"width":"100%","blog_url":"https://vul.hatenadiary.com/","image_url":null,"provider_url":"https://hatena.blog","height":"190","type":"rich","provider_name":"Hatena Blog","categories":["\u8106\u5f31\u6027: Log4Shell","\u30e9\u30a4\u30d6\u30e9\u30ea: Apache Log4j","CVE-2021-45046","CVE-2021-44228","\u7de9\u548c\u7b56"],"url":"https://vul.hatenadiary.com/entry/2021/12/15/000000_1","title":"\u300cLog4jShell\u300d\u306e\u5f53\u521d\u7de9\u548c\u7b56\u3092\u5426\u5b9a - \u6700\u65b0\u7248\u3078\u306e\u66f4\u65b0\u3092","author_name":"tanigawa","version":"1.0","blog_title":"TT \u8106\u5f31\u6027 Blog","description":"\u3010\u8981\u70b9\u3011 \u25ce \u5f93\u6765\u516c\u8868\u3057\u3066\u3044\u305f\u300c\u7de9\u548c\u7b56\u300d\u3092\u5426\u5b9a\u3002\u6700\u65b0\u7248\u3078\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3092\u6c42\u3081\u308b \u3010\u6982\u8981\u3011\u25a0\u5426\u5b9a\u3055\u308c\u305f\u7de9\u548c\u7b56 \u5426\u5b9a\u3055\u308c\u305f\u7de9\u548c\u7b56 \u00d7 \u300clog4j2.formatMsgNoLookups\u300d\u306e\u8a2d\u5b9a \u00d7 \u300cLOG4J_FORMAT_MSG_NO_LOOKUPS\u300d\u3092\u300ctrue\u300d\u3068\u3059\u308b \u00d7 \u300c%m{nolookups}\u300d\u300c%msg{nolookups}\u300d\u300c%message{nolookups}\u300d\u3092\u7528\u3044\u305f\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u300cLookup\u300d\u6a5f\u80fd\u3092\u7121\u52b9\u5316\u3059\u308b\u65b9\u6cd5 \u25a0\u6709\u52b9\u306a\u5bfe\u7b56 \u6709\u52b9\u306a\u5bfe\u7b56 \u3007 \u6700\u65b0\u7248\u3078\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8 \u3007 \u30af\u30e9\u30b9\u300cJndiLookup\u300d\u306e\u524a\u9664 \u3010\u30cb\u30e5\u30fc\u30b9\u3011 \u25c6\u300cLog4jShell\u300d\u306e\u5f53\u521d\u7de9\u548c\u7b56\u3092\u5426\u5b9a \u2026","author_url":"https://blog.hatena.ne.jp/tanigawa/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fvul.hatenadiary.com%2Fentry%2F2021%2F12%2F15%2F000000_1\" title=\"\u300cLog4jShell\u300d\u306e\u5f53\u521d\u7de9\u548c\u7b56\u3092\u5426\u5b9a - \u6700\u65b0\u7248\u3078\u306e\u66f4\u65b0\u3092 - TT \u8106\u5f31\u6027 Blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2021-12-15 00:00:00"}