{"id":5570,"date":"2023-10-02T11:58:00","date_gmt":"2023-10-02T02:58:00","guid":{"rendered":"https:\/\/stg.wpmake.jp\/contents\/?post_type=security&#038;p=5570"},"modified":"2023-10-23T17:16:12","modified_gmt":"2023-10-23T08:16:12","slug":"directory_traversal","status":"publish","type":"security","link":"https:\/\/stg.wpmake.jp\/contents\/security\/directory_traversal\/","title":{"rendered":"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u3068\u306f\uff1f\u653b\u6483\u624b\u6cd5\u3068\u5bfe\u7b56\u65b9\u6cd55\u3064\u3092\u89e3\u8aac"},"content":{"rendered":"<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u3068\u306f\u3001\u4e0d\u6b63\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3078\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3068\u3044\u3046\u8106\u5f31\u6027\u3067\u3059\u3002\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u305f\u653b\u6483\u3067\u306f\u60c5\u5831\u6f0f\u6d29\u3084\u4e0d\u6b63\u6539\u3056\u3093\u306a\u3069\u306e\u91cd\u5927\u306a\u88ab\u5bb3\u3092\u751f\u3080\u30ea\u30b9\u30af\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div 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title=\"\u5916\u90e8\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u6307\u5b9a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b\">\u5916\u90e8\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u6307\u5b9a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/stg.wpmake.jp\/contents\/security\/directory_traversal\/#%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E6%A8%A9%E9%99%90%E3%82%92%E8%A8%AD%E5%AE%9A%E3%81%99%E3%82%8B\" title=\"\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u3092\u8a2d\u5b9a\u3059\u308b\">\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u3092\u8a2d\u5b9a\u3059\u308b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" 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href=\"https:\/\/stg.wpmake.jp\/contents\/security\/directory_traversal\/#%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%8C%E7%99%BA%E8%A6%8B%E3%81%95%E3%82%8C%E3%81%9F%E5%A0%B4%E5%90%88%E3%81%AF%E9%80%9F%E3%82%84%E3%81%8B%E3%81%AB%E3%83%90%E3%83%BC%E3%82%B8%E3%83%A7%E3%83%B3%E3%82%A2%E3%83%83%E3%83%97%E3%81%99%E3%82%8B\" title=\"\u8106\u5f31\u6027\u304c\u767a\u898b\u3055\u308c\u305f\u5834\u5408\u306f\u901f\u3084\u304b\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3059\u308b\">\u8106\u5f31\u6027\u304c\u767a\u898b\u3055\u308c\u305f\u5834\u5408\u306f\u901f\u3084\u304b\u306b\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3059\u308b<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/stg.wpmake.jp\/contents\/security\/directory_traversal\/#%E3%81%BE%E3%81%A8%E3%82%81\" title=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E3%83%87%E3%82%A3%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AA%E3%83%88%E3%83%A9%E3%83%90%E3%83%BC%E3%82%B5%E3%83%AB%E3%81%A8%E3%81%AF\"><\/span>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u3068\u306f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\uff08directory traversal\uff09\u3068\u306f\u3001\u4e0d\u6b63\u306a\u30d1\u30b9\u3092\u633f\u5165\u3059\u308b\u3053\u3068\u3067\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u975e\u516c\u958b\u306e\u30d5\u30a1\u30a4\u30eb\u3084\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u304c\u64cd\u4f5c\u307e\u305f\u306f\u95b2\u89a7\u3067\u304d\u3066\u3057\u307e\u3046\u8106\u5f31\u6027\u306e\u3053\u3068\u3002<\/p>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u6a2a\u65ad\uff08\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\uff09\u3057\u3066\u975e\u516c\u958b\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u4e0d\u6b63\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u304b\u3089\u3001\u3053\u306e\u540d\u79f0\u304c\u3064\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3001\u672c\u6765\u975e\u516c\u958b\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3059\u308b\u653b\u6483\u3092\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\uff08\u30d1\u30b9\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\uff09\u3068\u547c\u3073\u307e\u3059\u3002\u4e3b\u306a\u653b\u6483\u5bfe\u8c61\u306f\u3001\u5916\u90e8\u304b\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u7528\u3044\u3066\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u76f4\u63a5\u6307\u5b9a\u3059\u308b\u69cb\u9020\u306eWeb\u30b5\u30a4\u30c8\u3084Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002<\/p>\n<h3><span 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decoding=\"async\" src=\"https:\/\/stg.wpmake.jp\/contents\/wp-content\/uploads\/2023\/09\/directory_traversal1.jpg\" alt=\"\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u306e\u624b\u53e3\u3068\u306f\" width=\"1280\" height=\"287\" class=\"aligncenter size-full wp-image-4250\" \/><\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u304c\u81ea\u793e\u306e\u4f01\u696d\u30b3\u30fc\u30c9\u300c0012\u300d\u3092\u5165\u529b\u3059\u308b\u3068\u3001\u305d\u306e\u4f01\u696d\u30b3\u30fc\u30c9\u3068\u540c\u3058\u540d\u524d\u306e0012\u30d5\u30a1\u30a4\u30eb\u3092\u8868\u793a\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u8a18\u8ff0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8106\u5f31\u6027\u304c\u653e\u7f6e\u3055\u308c\u3066\u3044\u305f\u308a\u9069\u5207\u306a\u51e6\u7406\u304c\u884c\u308f\u308c\u3066\u3044\u306a\u3044\u72b6\u6cc1\u3060\u3063\u305f\u5834\u5408\u3001\u653b\u6483\u8005\u304c\u4f01\u696d\u30b3\u30fc\u30c9\u3067\u306f\u306a\u304f\u300c..\/etc\/passwd\u300d\u3068\u3044\u3046\u76f8\u5bfe\u30d1\u30b9\u5165\u308a\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u76f8\u5bfe\u30d1\u30b9\u3092\u5909\u63db\uff08\u6b63\u898f\u5316\uff09\u3057\u3066\u3057\u307e\u3044\u3001\u975e\u516c\u958b\u3067\u3042\u308b\u306f\u305a\u306epasswd\u30d5\u30a1\u30a4\u30eb\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u7d50\u679c\u3001\u653b\u6483\u8005\u306f\u30d5\u30a1\u30a4\u30eb\u3092\u76d7\u307f\u898b\u305f\u308a\u524a\u9664\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E7%B5%B6%E5%AF%BE%E3%83%91%E3%82%B9%E3%81%A8%E7%9B%B8%E5%AF%BE%E3%83%91%E3%82%B9\"><\/span>\u7d76\u5bfe\u30d1\u30b9\u3068\u76f8\u5bfe\u30d1\u30b9<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u304c\u6210\u7acb\u3059\u308b\u7406\u7531\u306f\u3001\u30d1\u30b9\u306e\u8a18\u8ff0\u65b9\u6cd5\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u3082\u305d\u3082\u300c\u30d1\u30b9\u300d\u3068\u306f\u3001\u30d5\u30a9\u30eb\u30c0\u3084\u30d5\u30a1\u30a4\u30eb\u306e\u4f4d\u7f6e\u3092\u8868\u3059\u6587\u5b57\u5217\u306e\u3053\u3068\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u3084\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u5225\u306e\u5834\u6240\u306b\u3042\u308b\u30d5\u30a1\u30a4\u30eb\u3092\u53c2\u7167\u3059\u308b\u969b\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30d1\u30b9\u3067\u3042\u308c\u3070\u3001\u300csample-web.com\u300d\u306e\u4e0b\u5c64\u30d5\u30a9\u30eb\u30c0\u3067\u3042\u308b\u300cnews\u300d\u30d5\u30a9\u30eb\u30c0\u306e\u4e0b\u5c64\u30d5\u30a9\u30eb\u30c0\u300cimages\u300d\u5185\u306b\u3042\u308b\u300cimage.jpg\u300d\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<div style=\"color: #fff; background-color: #434343; padding: 10px; margin-bottom: 2rem;\">https:\/\/www.sample-web.com\/news\/images\/image.jpg<\/div>\n<p>\u30d1\u30b9\u306e\u66f8\u304d\u65b9\u306b\u306f\u3001\u7d76\u5bfe\u30d1\u30b9\u3068\u76f8\u5bfe\u30d1\u30b9\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001\u5168\u3066\u306e\u30d1\u30b9\u3092\u7701\u7565\u305b\u305a\u306b\u8868\u8a18\u3059\u308b\u65b9\u6cd5\u304c\u7d76\u5bfe\u30d1\u30b9\u3067\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u76f8\u5bfe\u30d1\u30b9\u306f\u3001\u305d\u306e\u540d\u306e\u3068\u304a\u308a\u57fa\u6e96\u3068\u306a\u308b\u5834\u6240\u304b\u3089\u306e\u4f4d\u7f6e\u3092\u76f8\u5bfe\u7684\u306b\u8868\u8a18\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4e0a\u8a18\u306eimage.jpg\u3092https:\/\/www.sample-web.com\/news\/index.php \u304b\u3089\u53c2\u7167\u3059\u308b\u5834\u5408\u306f\u3001<\/p>\n<div style=\"color: #fff; background-color: #434343; padding: 10px; margin-bottom: 2rem;\">.\/images\/image.jpg<\/div>\n<p>\u3068\u8868\u8a18\u3057\u307e\u3059\u3002<br \/>\n\u5148\u982d\u306e\u300c.\/\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u304c\u3001\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u300chttps:\/\/www.sample-web.com\/news\/\u300d\u3092\u8868\u3057\u3066\u3044\u308b\u3093\u3067\u3059\u306d\u3002<\/p>\n<p>\u300c.\/\u300d\u306f\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u8868\u3057\u307e\u3059\u304c\u3001\u73fe\u5728\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e\u3072\u3068\u3064\u4e0a\u306e\u968e\u5c64\u306f\u300c..\/\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u3067\u8868\u3055\u308c\u307e\u3059\u3002<br \/>\n\u3053\u306e\u300c..\/\u300d\u3068\u3044\u3046\u76f8\u5bfe\u30d1\u30b9\u306e\u8a18\u8ff0\u304c\u7d76\u5bfe\u30d1\u30b9\u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u308b\uff08\u6b63\u898f\u5316\u3055\u308c\u308b\uff09\u3053\u3068\u3067\u3001\u653b\u6483\u8005\u306f\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306a\u3069\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u3068\u306a\u308b\u30d5\u30a1\u30a4\u30eb\u3078\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u76f8\u5bfe\u30d1\u30b9\u304b\u3089\u7d76\u5bfe\u30d1\u30b9\u3078\u306e\u6b63\u898f\u5316\u306e\u4ed5\u7d44\u307f\u3092\u60aa\u7528\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"WordPress%E3%82%B5%E3%82%A4%E3%83%88%E3%81%8C%E7%8B%99%E3%82%8F%E3%82%8C%E3%82%8B%E7%90%86%E7%94%B1\"><\/span>WordPress\u30b5\u30a4\u30c8\u304c\u72d9\u308f\u308c\u308b\u7406\u7531<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u306f\u3001WordPress\u30b5\u30a4\u30c8\u304c\u72d9\u308f\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ed6\u306e\u8106\u5f31\u6027\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u5831\u544a\u6570\u306f\u305d\u308c\u307b\u3069\u591a\u304f\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u5e74\u9593\u3067\u6570\u4ef6\u301c10\u4ef6\u7a0b\u5ea6\u306f\u5831\u544a\u3055\u308c\u3066\u304a\u308a\u3001\u653b\u6483\u3092\u53d7\u3051\u305f\u969b\u306e\u88ab\u5bb3\u306e\u5927\u304d\u3055\u3092\u8003\u3048\u308b\u3068\u7121\u8996\u306f\u3067\u304d\u306a\u3044\u72b6\u6cc1\u3067\u3059\u3002<\/p>\n<p>WordPress\u30b5\u30a4\u30c8\u304c\u72d9\u308f\u308c\u308b\u7406\u7531\u3068\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%97%E3%83%A9%E3%82%B0%E3%82%A4%E3%83%B3%E3%81%A7%E3%83%87%E3%82%A3%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AA%E3%83%88%E3%83%A9%E3%83%90%E3%83%BC%E3%82%B5%E3%83%AB%E3%81%AE%E8%84%86%E5%BC%B1%E6%80%A7%E3%81%8C%E5%A0%B1%E5%91%8A%E3%81%95%E3%82%8C%E3%81%A6%E3%81%84%E3%82%8B\"><\/span>\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>WordPress\u3067\u306f\u6a5f\u80fd\u3092\u8ffd\u52a0\u3067\u304d\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u304c\u591a\u6570\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\n\u7121\u6599\u3067\u5c0e\u5165\u3067\u304d\u308b\u305f\u3081\u3001\u8907\u6570\u500b\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u5229\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u304c\u898b\u3064\u304b\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>WordPress\u672c\u4f53\u3060\u3051\u3067\u306a\u304f\u3001WordPress\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u30d7\u30e9\u30b0\u30a4\u30f3\u3082\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u3067\u3042\u308b\u305f\u3081\u3001\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3060\u3051\u3067\u306a\u304f\u8106\u5f31\u6027\u60c5\u5831\u3082\u958b\u793a\u3055\u308c\u3001\u60aa\u610f\u306e\u3042\u308b\u30e6\u30fc\u30b6\u30fc\u3082\u8a8d\u8b58\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u591a\u304f\u306e\u5834\u5408\u3001\u8106\u5f31\u6027\u767a\u898b\u3068\u540c\u6642\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3082\u516c\u958b\u3055\u308c\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3092\u884c\u3046\u3053\u3068\u3067\u8106\u5f31\u6027\u3092\u89e3\u6d88\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001WordPress\u306f\u4e16\u754c\u3067\u6700\u3082\u4eba\u6c17\u306e\u3042\u308bCMS\u3067\u3042\u308a\u3001\u500b\u4eba\u3084\u4e2d\u5c0f\u4f01\u696d\u306a\u3069\u30ea\u30c6\u30e9\u30b7\u30fc\u304c\u4f4e\u3044\u30e6\u30fc\u30b6\u30fc\u3082\u4e00\u5b9a\u6570\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p>\u653b\u6483\u8005\u306f\u305d\u3046\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u3092\u72d9\u3046\u3053\u3068\u3067\u3001\u82e6\u52b4\u3059\u308b\u3053\u3068\u306a\u304f\u653b\u6483\u3092\u6210\u529f\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u9006\u306b\u8a00\u3048\u3070\u3001\u6700\u65b0\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u5229\u7528\u3059\u308b\u3001\u8106\u5f31\u6027\u60c5\u5831\u516c\u958b\u6642\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u306b\u5bfe\u5fdc\u3059\u308b\u3001\u66f4\u65b0\u65e5\u304c\u53e4\u3044\u30d7\u30e9\u30b0\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u306a\u3044\u306a\u3069\u3001\u57fa\u672c\u7684\u306a\u63a8\u5968\u30eb\u30fc\u30eb\u3092\u5b88\u3063\u3066\u3044\u308c\u3070\u30ea\u30b9\u30af\u306f\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/stg.wpmake.jp\/contents\/wp-content\/uploads\/2023\/09\/directory_traversal2.jpg\" alt=\"\u30d7\u30e9\u30b0\u30a4\u30f3\u3067\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u306e\u8106\u5f31\u6027\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u308b\" width=\"1280\" height=\"287\" class=\"aligncenter size-full wp-image-4250\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0%E6%A7%8B%E6%88%90%E3%81%8C%E5%85%B1%E9%80%9A%E3%81%AA%E3%81%AE%E3%81%A7%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%82%92%E6%8E%A8%E6%B8%AC%E3%81%97%E3%82%84%E3%81%99%E3%81%84\"><\/span>\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u304c\u5171\u901a\u306a\u306e\u3067\u30d5\u30a1\u30a4\u30eb\u3092\u63a8\u6e2c\u3057\u3084\u3059\u3044<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>WordPress\u306f\u3001\u30d5\u30a9\u30eb\u30c0\u306e\u968e\u5c64\u3084\u30d5\u30a1\u30a4\u30eb\u540d\u304c\u57fa\u672c\u7684\u306b\u5171\u901a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u653b\u6483\u8005\u306b\u3068\u3063\u3066\u306f\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u63a8\u6e2c\u3057\u3084\u3059\u304f\u3001\u3069\u306e\u60c5\u5831\u304c\u3069\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u304b\u304c\u5bb9\u6613\u306b\u628a\u63e1\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7279\u306b\u3001WordPress\u3067\u306fwp-config.php\u30d5\u30a1\u30a4\u30eb\u306b\u91cd\u8981\u306a\u60c5\u5831\u304c\u591a\u304f\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001wp-config.php\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u76f8\u5bfe\u30d1\u30b9\u3092\u6307\u5b9a\u3059\u308b\u653b\u6483\u304c\u983b\u7e41\u306b\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%83%87%E3%82%A3%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AA%E3%83%88%E3%83%A9%E3%83%90%E3%83%BC%E3%82%B5%E3%83%AB%E6%94%BB%E6%92%83%E3%81%AB%E3%82%88%E3%82%8B%E5%BD%B1%E9%9F%BF\"><\/span>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u306b\u3088\u308b\u5f71\u97ff<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u3092\u53d7\u3051\u308b\u3053\u3068\u3067\u3001\u60c5\u5831\u6f0f\u6d29\u3084\u30d5\u30a1\u30a4\u30eb\u6539\u3056\u3093\u306a\u3069\u306e\u88ab\u5bb3\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E6%83%85%E5%A0%B1%E6%BC%8F%E6%B4%A9\"><\/span>\u60c5\u5831\u6f0f\u6d29<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u30e6\u30fc\u30b6\u30fc\u306eID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u60c5\u5831\u3084\u30b7\u30b9\u30c6\u30e0\u95a2\u9023\u306e\u91cd\u8981\u60c5\u5831\u306a\u3069\u304c\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u6d41\u51fa\u306b\u3088\u308a\u3001\u4e0d\u6b63\u30ed\u30b0\u30a4\u30f3\u306a\u3069\u3055\u3089\u306a\u308b\u88ab\u5bb3\u306b\u3064\u306a\u304c\u308b\u30ea\u30b9\u30af\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>WordPress\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u306eID\u30fb\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3069\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u7ba1\u7406\u3055\u308c\u307e\u3059\u304c\u3001wp-config.php\u7b49\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u95b2\u89a7\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u60c5\u5831\u3082\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u60c5\u5831\u6f0f\u6d29\u306f\u30e6\u30fc\u30b6\u30fc\u3078\u306e2\u6b21\u88ab\u5bb3\u304c\u61f8\u5ff5\u3055\u308c\u308b\u3053\u3068\u306b\u52a0\u3048\u3001\u30b5\u30a4\u30c8\u30fb\u30d6\u30e9\u30f3\u30c9\u30fb\u4f1a\u793e\u306b\u5bfe\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u4fe1\u983c\u304c\u5927\u304d\u304f\u640d\u306a\u308f\u308c\u308b\u30ea\u30b9\u30af\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E6%94%B9%E3%81%96%E3%82%93%E3%80%81%E3%83%87%E3%83%BC%E3%82%BF%E5%89%8A%E9%99%A4\"><\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u6539\u3056\u3093\u3001\u30c7\u30fc\u30bf\u524a\u9664<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3084\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u6539\u3056\u3093\u3055\u308c\u305f\u308a\u3001\u30c7\u30fc\u30bf\u3092\u524a\u9664\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u6539\u3056\u3093\u3055\u308c\u308b\u3068\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5185\u5bb9\u304c\u66f8\u304d\u63db\u3048\u3089\u308c\u305f\u308a\u3001\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30d5\u30a1\u30a4\u30eb\u306e\u53c2\u7167\u5148\u3084\u30ea\u30f3\u30af\u5148\u304c\u4e0d\u6b63\u306a\u30b5\u30a4\u30c8\u306b\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u306b\u3088\u308aWeb\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u304c\u77e5\u3089\u306a\u3044\u3046\u3061\u306b\u5225\u306e\u4e0d\u6b63\u30b5\u30a4\u30c8\u3078\u8ee2\u9001\u3055\u308c\u3001\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u611f\u67d3\u3059\u308b\u5371\u967a\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30d5\u30a9\u30fc\u30e0\u9001\u4fe1\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6539\u3056\u3093\u3055\u308c\u305f\u5834\u5408\u306f\u30e6\u30fc\u30b6\u30fc\u304c\u30d5\u30a9\u30fc\u30e0\u306b\u5165\u529b\u3057\u305f\u5185\u5bb9\u304c\u5916\u90e8\u306b\u6d41\u51fa\u3059\u308b\u5371\u967a\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u6539\u3056\u3093\u306f\u88ab\u5bb3\u304c\u8d77\u304d\u308b\u307e\u3067\u6c17\u4ed8\u304b\u306a\u3044\u30b1\u30fc\u30b9\u3082\u591a\u304f\u3001\u554f\u984c\u304c\u767a\u899a\u3057\u305f\u6642\u306b\u306f\u65e2\u306b\u5927\u898f\u6a21\u306a\u88ab\u5bb3\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%83%87%E3%82%A3%E3%83%AC%E3%82%AF%E3%83%88%E3%83%AA%E3%83%88%E3%83%A9%E3%83%90%E3%83%BC%E3%82%B5%E3%83%AB%E6%94%BB%E6%92%83%E3%82%92%E9%98%B2%E3%81%905%E3%81%A4%E3%81%AE%E5%AF%BE%E7%AD%96\"><\/span>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u3092\u9632\u30505\u3064\u306e\u5bfe\u7b56<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\uff15\u3064\u306e\u5bfe\u7b56\u3092\u884c\u3046\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%A4%96%E9%83%A8%E3%81%8B%E3%82%89%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E5%90%8D%E3%82%92%E6%8C%87%E5%AE%9A%E3%81%A7%E3%81%8D%E3%81%AA%E3%81%84%E3%82%88%E3%81%86%E3%81%AB%E3%81%99%E3%82%8B\"><\/span>\u5916\u90e8\u304b\u3089\u30d5\u30a1\u30a4\u30eb\u540d\u3092\u6307\u5b9a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u653b\u6483\u8005\u306f\u4e0d\u6b63\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u3066\u653b\u6483\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u305d\u3082\u305d\u3082\u5916\u90e8\u304b\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3067Web\u30b5\u30fc\u30d0\u30fc\u4e0a\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u6307\u5b9a\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u653b\u6483\u304c\u5b9f\u884c\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%81%AE%E3%82%A2%E3%82%AF%E3%82%BB%E3%82%B9%E6%A8%A9%E9%99%90%E3%82%92%E8%A8%AD%E5%AE%9A%E3%81%99%E3%82%8B\"><\/span>\u30d5\u30a1\u30a4\u30eb\u306e\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u3092\u8a2d\u5b9a\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u975e\u516c\u958b\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f\u3001\u5916\u90e8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u3092\u5236\u9650\u3057\u307e\u3059\u3002\u30a2\u30af\u30bb\u30b9\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u4e07\u304c\u4e00\u653b\u6483\u3055\u308c\u305f\u5834\u5408\u3067\u3082\u30d5\u30a1\u30a4\u30eb\u3078\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u4e8b\u614b\u3092\u9632\u3052\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u4ed6\u306e\u30d5\u30a1\u30a4\u30eb\u306b\u3082\u30a2\u30af\u30bb\u30b9\u6a29\u9650\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"%E5%85%A5%E5%8A%9B%E5%86%85%E5%AE%B9%E3%82%92%E3%83%81%E3%82%A7%E3%83%83%E3%82%AF%E3%81%99%E3%82%8B\"><\/span>\u5165\u529b\u5185\u5bb9\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5165\u529b\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5185\u5bb9\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3092\u6307\u5b9a\u3067\u304d\u308b\u6587\u5b57\u5217\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u3001\u8a72\u5f53\u306e\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b\u306a\u3069\u306e\u51e6\u7406\u3092\u884c\u3046\u3088\u3046\u306b\u3059\u308b\u306e\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u3001\u30d1\u30b9\u3092\u533a\u5207\u308b\u300c\/\u300d\u3084\u4e0a\u4f4d\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u3078\u9061\u308b\u300c..\/\u300d\u306a\u3069\u306e\u6587\u5b57\u5217\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u5f71\u97ff\u306e\u306a\u3044\u6587\u5b57\u5217\u306b\u7f6e\u63db\uff08\u30b5\u30cb\u30bf\u30a4\u30ba\uff09\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u300c\/\u300d\u3092\u300c%2F\u300d\u3068\u3044\u3046\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u30d1\u30b9\u3092\u533a\u5207\u308b\u3068\u3044\u3046\u610f\u5473\u3092\u89e3\u91c8\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<h3><span class=\"ez-toc-section\" id=\"WAF%E3%82%92%E5%B0%8E%E5%85%A5%E3%81%99%E3%82%8B\"><\/span>WAF\u3092\u5c0e\u5165\u3059\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>WAF\uff08Web Application Firewall\uff1a\u30ef\u30d5\uff09\u306f\u3001Web\u30b5\u30fc\u30d0\u30fc\u306e\u901a\u4fe1\u3092\u691c\u67fb\u30fb\u89e3\u6790\u3057\u3066\u653b\u6483\u3092\u906e\u65ad\u3057\u3066\u304f\u308c\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e00\u7a2e\u3067\u3059\u3002<\/p>\n<p>\u4e3b\u306bWeb\u30b5\u30fc\u30d0\u30fc\u306e\u524d\u6bb5\u306b\u8a2d\u7f6e\u3057\u3001Web\u30b5\u30fc\u30d3\u30b9\u30fbWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7684\u306b\u5f31\u3044\u90e8\u5206\u3067\u3042\u308b\u300c\u8106\u5f31\u6027\u300d\u3092\u72d9\u3063\u305f\u653b\u6483\u304b\u3089\u5305\u62ec\u7684\u306bWeb\u30b5\u30a4\u30c8\u3092\u5b88\u308b\u305f\u3081\u306b\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u901a\u4fe1\u5185\u5bb9\u3092\u4e8b\u524d\u306b\u5b9a\u7fa9\u3057\u305f\u30ea\u30b9\u30c8\u3092\u5143\u306b\u691c\u67fb\u3059\u308b\u3053\u3068\u3067\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306a\u3069\u306e\u5371\u967a\u306a\u901a\u4fe1\u3092\u906e\u65ad\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>WAF\u306b\u95a2\u3057\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u8a73\u3057\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u3053\u3061\u3089\u3082\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p><a 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