{"id":6918,"date":"2025-07-18T10:44:19","date_gmt":"2025-07-18T01:44:19","guid":{"rendered":"https:\/\/blog.since2020.jp\/?p=6918"},"modified":"2025-07-18T10:44:19","modified_gmt":"2025-07-18T01:44:19","slug":"sql-injection_glossary","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/sql-injection_glossary\/","title":{"rendered":"SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\uff1a\u6700\u65b0\u52d5\u5411\u3068\u653b\u6483\u624b\u6cd5\u304b\u3089\u9632\u5fa1\u7b56\u307e\u3067\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u304a\u3051\u308b\u5927\u304d\u306a\u30ea\u30b9\u30af\u3067\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u6700\u65b0\u306e\u653b\u6483\u624b\u6cd5\u3001\u904e\u53bb\u306e\u4e8b\u4f8b\u3001\u52b9\u679c\u7684\u306a\u9632\u5fa1\u7b56\u3092\u5305\u62ec\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u62c5\u5f53\u8005\u306f\u3082\u3061\u308d\u3093\u3001\u958b\u767a\u8005\u5fc5\u898b\u306e\u60c5\u5831\u304c\u6e80\u8f09\u3067\u3059\u3002<\/p>\n\n\n<h2>\u306f\u3058\u3081\u306b\uff1aSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u6df1\u523b\u306a\u5f71\u97ff<\/h2>\n<p><strong>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\uff08SQLi\uff09<\/strong>\u306f\u3001\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u4e2d\u3067\u6700\u3082\u591a\u304f\u306e\u653b\u6483\u3092\u53d7\u3051\u3066\u3044\u308b\u8106\u5f31\u6027\u306e\u4e00\u3064\u3067\u3059\u3002Web\u30b7\u30b9\u30c6\u30e0\u3092\u60aa\u7528\u3057\u3066\u3001\u653b\u6483\u8005\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4e0d\u6b63\u306a\u547d\u4ee4\u3092\u9001\u308a\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u6df1\u523b\u306a\u30c7\u30fc\u30bf\u6f0f\u6d29\u3084\u4e0d\u6b63\u64cd\u4f5c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\r\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u57fa\u672c\u7684\u306a\u6982\u5ff5\u304b\u3089\u6700\u65b0\u306e\u653b\u6483\u624b\u6cd5\u3001\u5b9f\u969b\u306e\u653b\u6483\u4e8b\u4f8b\u3001\u305d\u3057\u3066\u9632\u5fa1\u7b56\u306b\u3064\u3044\u3066\u3001\u521d\u5fc3\u8005\u3067\u3082\u308f\u304b\u308b\u3088\u3046\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n<h2>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3068\u306f\uff1f\u305d\u306e\u672c\u8cea\u306b\u8feb\u308b<\/h2>\n<p><strong>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/strong>\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u3084\u308a\u53d6\u308a\u3059\u308bSQL\u30af\u30a8\u30ea\u306b\u4e0d\u6b63\u306a\u30b3\u30fc\u30c9\u3092\u57cb\u3081\u8fbc\u3080\u653b\u6483\u624b\u6cd5\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u653b\u6483\u8005\u306f\u30b7\u30b9\u30c6\u30e0\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u30fb\u6539\u3056\u3093\u30fb\u524a\u9664\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<b>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u767a\u751f\u3059\u308b\u539f\u56e0<\/b>\r\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u767a\u751f\u3059\u308b\u4e3b\u306a\u539f\u56e0\u306f\u3001<strong>\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u306e\u4e0d\u6b63\u306a\u51e6\u7406<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30ed\u30b0\u30a4\u30f3\u30d5\u30a9\u30fc\u30e0\u306b\u5165\u529b\u3055\u308c\u305f\u6587\u5b57\u5217\u304c\u305d\u306e\u307e\u307eSQL\u30af\u30a8\u30ea\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3001\u610f\u56f3\u3057\u306a\u3044\u64cd\u4f5c\u3092\u5b9f\u884c\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\r\n<p>\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306aSQL\u30af\u30a8\u30ea\u304cWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u305f\u5834\u5408\uff1a<\/p>\r\n<p><code class=\"language-sql\">\r\nSELECT * FROM users WHERE username = '\u30e6\u30fc\u30b6\u30fc\u540d' AND password = '\u30d1\u30b9\u30ef\u30fc\u30c9';\r\n\r\n<\/code><\/p>\r\n<p>\u653b\u6483\u8005\u304c\u300c<code>\u30e6\u30fc\u30b6\u30fc\u540d<\/code>\u300d\u3084\u300c<code>\u30d1\u30b9\u30ef\u30fc\u30c9<\/code>\u300d\u306b\u6b21\u306e\u3088\u3046\u306a\u6587\u5b57\u5217\u3092\u5165\u529b\u3059\u308b\u3068\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<p><code class=\"language-sql\">\r\n' OR '1'='1\r\n<\/code><\/p>\r\n<p>\u3053\u308c\u306b\u3088\u308a\u3001SQL\u30af\u30a8\u30ea\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<p><code class=\"language-sql\">\r\nSELECT * FROM users WHERE username = '' OR '1'='1' AND password = '';\r\n<\/code><\/p>\r\n<p>\u3053\u308c\u306b\u3088\u3063\u3066\u3001\u653b\u6483\u8005\u306f\u4e0d\u6b63\u306b\u30ed\u30b0\u30a4\u30f3\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u5165\u529b\u304cSQL\u30af\u30a8\u30ea\u306e\u4e2d\u306b\u76f4\u63a5\u57cb\u3081\u8fbc\u307e\u308c\u308b\u3068\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\r\n<p><!-- notionvc: 2685d3f1-eab1-486f-a1af-03584bde8625 --><\/p>\n\n<h2>\u6700\u65b0\u306e\u653b\u6483\u624b\u6cd5\u3068SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u9032\u5316<\/h2>\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u3001\u5358\u306a\u308b\u300c\u6587\u5b57\u5217\u306e\u633f\u5165\u300d\u306b\u3068\u3069\u307e\u3089\u305a\u3001<strong>\u9ad8\u5ea6\u306a\u624b\u6cd5<\/strong>\u3078\u3068\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u65b0\u306e\u653b\u6483\u624b\u6cd5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u52b9\u679c\u7684\u306a\u9632\u5fa1\u7b56\u3092\u7acb\u3066\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\r\n<b>\u30d6\u30e9\u30a4\u30f3\u30c9SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\uff1a\u53cd\u5fdc\u306a\u3057\u3067\u3082\u653b\u6483\u53ef\u80fd<\/b>\r\n<p><strong>\u30d6\u30e9\u30a4\u30f3\u30c9SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/strong>\u306f\u3001\u653b\u6483\u5bfe\u8c61\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u653b\u6483\u8005\u306b\u76f4\u63a5\u7684\u306a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u8fd4\u3055\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u653b\u6483\u3092\u6210\u529f\u3055\u305b\u308b\u6280\u8853\u3067\u3059\u3002\u653b\u6483\u8005\u306f\u3001<strong>\u30bf\u30a4\u30df\u30f3\u30b0\u3084\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u9055\u3044<\/strong>\u3092\u5229\u7528\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u69cb\u9020\u3084\u60c5\u5831\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u6700\u8fd1\u3067\u306f\u3001\u3053\u306e\u624b\u6cd5\u3092\u7528\u3044\u305f\u653b\u6483\u304c\u5897\u52a0\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<p>\u4f8b\u3048\u3070\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u4e0b\u3067\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u7570\u5e38\u306b\u9045\u304f\u306a\u308b\u5834\u5408\u3001\u305d\u306e\u30bf\u30a4\u30e0\u30e9\u30b0\u3092\u5229\u7528\u3057\u3066\u653b\u6483\u8005\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u60c5\u5831\u3092\u5f90\u3005\u306b\u62bd\u51fa\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\r\n<b>\u6642\u9593\u30d9\u30fc\u30b9\u304a\u3088\u3073\u8ad6\u7406\u30d9\u30fc\u30b9\u306e\u30d6\u30e9\u30a4\u30f3\u30c9SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3<\/b>\r\n<p>\u30d6\u30e9\u30a4\u30f3\u30c9SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u306f\u3001<strong>\u6642\u9593\u30d9\u30fc\u30b9<\/strong>\u3068<strong>\u8ad6\u7406\u30d9\u30fc\u30b9<\/strong>\u306e2\u3064\u306e\u4e3b\u306a\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u653b\u6483\u8005\u306f\u30b7\u30b9\u30c6\u30e0\u304c\u5fdc\u7b54\u3059\u308b\u901f\u5ea6\u3092\u89b3\u5bdf\u3059\u308b\u3053\u3068\u3067\u3001\u6761\u4ef6\u306b\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u63a8\u6e2c\u3057\u3001\u653b\u6483\u3092\u9032\u3081\u307e\u3059\u3002<\/p>\r\n<p><!-- notionvc: b1f8ef31-d268-4c8a-ada9-d7107eb90670 --><\/p>\n\n<h2>\u5b9f\u969b\u306e\u4e8b\u4f8b\uff1aSQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u653b\u6483\u306e\u88ab\u5bb3<\/h2>\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306f\u904e\u53bb\u306b\u591a\u304f\u306e\u5b9f\u969b\u306e\u4e8b\u4f8b\u3067\u88ab\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3057\u3066\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u305d\u306e\u4e00\u90e8\u3067\u3059\u3002<\/p>\r\n<b>\u4e8b\u4f8b1\uff1a\u6709\u540dEC\u30b5\u30a4\u30c8\u3078\u306e\u653b\u6483<\/b>\r\n<p>\u3042\u308b\u6709\u540d\u306aEC\u30b5\u30a4\u30c8\u3067\u306f\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308a\u6570\u767e\u4e07\u4ef6\u306e\u9867\u5ba2\u60c5\u5831\u304c\u6f0f\u6d29\u3057\u307e\u3057\u305f\u3002\u653b\u6483\u8005\u306f\u30ed\u30b0\u30a4\u30f3\u30da\u30fc\u30b8\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u7ba1\u7406\u8005\u6a29\u9650\u3092\u53d6\u5f97\u3002\u500b\u4eba\u60c5\u5831\u3084\u6ce8\u6587\u5c65\u6b74\u306a\u3069\u304c\u4e0d\u6b63\u306b\u30a2\u30af\u30bb\u30b9\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\r\n<b>\u4e8b\u4f8b2\uff1a\u653f\u5e9c\u6a5f\u95a2\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u6a19\u7684\u306b<\/b>\r\n<p>\u653f\u5e9c\u6a5f\u95a2\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u3082SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306b\u3088\u308b\u653b\u6483\u304c\u884c\u308f\u308c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u305f\u91cd\u8981\u306a\u56fd\u6c11\u60c5\u5831\u304c\u4e0d\u6b63\u306b\u53d6\u5f97\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u306e\u4e8b\u4f8b\u3067\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u4e0d\u5341\u5206\u3067\u3042\u3063\u305f\u3053\u3068\u304c\u6307\u6458\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<p>\u3053\u308c\u3089\u306e\u4e8b\u4f8b\u306f\u3001SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304c\u5358\u306a\u308b\u300c\u653b\u6483\u306e\u624b\u6bb5\u300d\u3067\u306f\u306a\u304f\u3001<strong>\u6df1\u523b\u306a\u793e\u4f1a\u7684\u30fb\u7d4c\u6e08\u7684\u5f71\u97ff\u3092\u53ca\u307c\u3059\u53ef\u80fd\u6027<\/strong>\u304c\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\r\n<p><!-- notionvc: 516ba830-c04d-45e1-9010-315565cd97bc --><\/p>\n\n<h2>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u306e\u9632\u5fa1\u7b56\uff1a\u6700\u65b0\u306e\u5bfe\u7b56\u3092\u8b1b\u3058\u308b<\/h2>\n<p>SQL\u30a4\u30f3\u30b8\u30a7\u30af\u30b7\u30e7\u30f3\u304b\u3089\u5b88\u308b\u305f\u3081\u306b\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3092\u3057\u3063\u304b\u308a\u3068\u8b1b\u3058\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067\u3001\u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<b>1. 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