{"id":144095,"date":"2024-11-01T05:40:29","date_gmt":"2024-10-31T21:40:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/144095\/"},"modified":"2024-11-01T05:40:30","modified_gmt":"2024-10-31T21:40:30","slug":"sql-%e6%b3%a8%e5%85%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/144095\/","title":{"rendered":"SQL \u6ce8\u5165"},"content":{"rendered":"<h1 id=\"sql-%e6%b3%a8%e5%85%a5%ef%bc%9a%e7%90%86%e8%a7%a3%e8%88%87%e9%98%b2%e7%af%84-guQfdIfzMS\">SQL \u6ce8\u5165\uff1a\u7406\u89e3\u8207\u9632\u7bc4<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5b89\u5168\u6210\u70ba\u4e86\u4f01\u696d\u548c\u500b\u4eba\u7528\u6236\u6700\u95dc\u6ce8\u7684\u554f\u984c\u4e4b\u4e00\u3002SQL \u6ce8\u5165\uff08SQL Injection\uff09\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u7db2\u7d61\u653b\u64ca\u624b\u6cd5\uff0c\u653b\u64ca\u8005\u901a\u904e\u5c07\u60e1\u610f\u7684 SQL \u8a9e\u53e5\u63d2\u5165\u5230\u61c9\u7528\u7a0b\u5e8f\u7684\u67e5\u8a62\u4e2d\uff0c\u5f9e\u800c\u64cd\u63a7\u5f8c\u7aef\u6578\u64da\u5eab\u3002\u9019\u7a2e\u653b\u64ca\u65b9\u5f0f\u4e0d\u50c5\u80fd\u5920\u7aca\u53d6\u654f\u611f\u6578\u64da\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u7684\u640d\u58de\u6216\u522a\u9664\u3002<\/p>\n<h2 id=\"sql-%e6%b3%a8%e5%85%a5%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86-guQfdIfzMS\">SQL \u6ce8\u5165\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<p>SQL \u6ce8\u5165\u7684\u57fa\u672c\u539f\u7406\u662f\u5229\u7528\u61c9\u7528\u7a0b\u5e8f\u5c0d\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u8655\u7406\u4e0d\u7576\u3002\u7576\u61c9\u7528\u7a0b\u5e8f\u5c07\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u76f4\u63a5\u5d4c\u5165\u5230 SQL \u67e5\u8a62\u4e2d\u6642\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u901a\u904e\u7279\u88fd\u7684\u8f38\u5165\u4f86\u6539\u8b8a\u67e5\u8a62\u7684\u7d50\u69cb\u3002\u4f8b\u5982\uff0c\u8003\u616e\u4ee5\u4e0b\u7684 SQL \u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = 'user' AND password = 'pass';<\/code><\/pre>\n<p>\u5982\u679c\u61c9\u7528\u7a0b\u5e8f\u672a\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u9069\u7576\u7684\u9a57\u8b49\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u8f38\u5165\u4ee5\u4e0b\u5167\u5bb9\u4f5c\u70ba\u7528\u6236\u540d\uff1a<\/p>\n<pre><code>' OR '1'='1<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6700\u7d42\u7684 SQL \u67e5\u8a62\u5c07\u8b8a\u70ba\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = '' OR '1'='1' AND password = 'pass';<\/code><\/pre>\n<p>\u7531\u65bc &#8216;1&#8217;=&#8217;1&#8242; \u6c38\u9060\u70ba\u771f\uff0c\u9019\u5c07\u4f7f\u5f97\u67e5\u8a62\u8fd4\u56de\u6240\u6709\u7528\u6236\u7684\u6578\u64da\uff0c\u5f9e\u800c\u4f7f\u653b\u64ca\u8005\u80fd\u5920\u7e5e\u904e\u8eab\u4efd\u9a57\u8b49\u3002<\/p>\n<h2 id=\"sql-%e6%b3%a8%e5%85%a5%e7%9a%84%e9%a1%9e%e5%9e%8b-guQfdIfzMS\">SQL \u6ce8\u5165\u7684\u985e\u578b<\/h2>\n<p>SQL \u6ce8\u5165\u53ef\u4ee5\u5206\u70ba\u5e7e\u7a2e\u985e\u578b\uff1a<\/p>\n<ul>\n<li><strong>\u6a19\u6e96 SQL \u6ce8\u5165\uff1a<\/strong>\u9019\u662f\u6700\u5e38\u898b\u7684\u5f62\u5f0f\uff0c\u653b\u64ca\u8005\u901a\u904e\u4fee\u6539 SQL \u67e5\u8a62\u4f86\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li><strong>\u76f2\u6ce8\uff1a<\/strong>\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u653b\u64ca\u8005\u7121\u6cd5\u76f4\u63a5\u770b\u5230\u6578\u64da\uff0c\u4f46\u53ef\u4ee5\u901a\u904e\u89c0\u5bdf\u61c9\u7528\u7a0b\u5e8f\u7684\u53cd\u61c9\u4f86\u63a8\u6e2c\u6578\u64da\u3002<\/li>\n<li><strong>\u57fa\u65bc\u6642\u9593\u7684\u76f2\u6ce8\uff1a<\/strong>\u653b\u64ca\u8005\u901a\u904e\u63a7\u5236\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\u4f86\u7372\u53d6\u4fe1\u606f\u3002<\/li>\n<li><strong>\u7b2c\u4e8c\u968e\u6bb5\u6ce8\u5165\uff1a<\/strong>\u9019\u7a2e\u653b\u64ca\u6d89\u53ca\u5230\u5728 SQL \u67e5\u8a62\u4e2d\u57f7\u884c\u5176\u4ed6 SQL \u8a9e\u53e5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%98%b2%e7%af%84-sql-%e6%b3%a8%e5%85%a5%e7%9a%84%e6%8e%aa%e6%96%bd-guQfdIfzMS\">\u9632\u7bc4 SQL \u6ce8\u5165\u7684\u63aa\u65bd<\/h2>\n<p>\u70ba\u4e86\u9632\u7bc4 SQL \u6ce8\u5165\u653b\u64ca\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u63aa\u65bd\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u9810\u8655\u7406\u8a9e\u53e5\uff1a<\/strong>\u9810\u8655\u7406\u8a9e\u53e5\u53ef\u4ee5\u5c07 SQL \u67e5\u8a62\u8207\u7528\u6236\u8f38\u5165\u5206\u958b\uff0c\u5f9e\u800c\u9632\u6b62\u60e1\u610f\u4ee3\u78bc\u7684\u57f7\u884c\u3002<\/li>\n<li><strong>\u8f38\u5165\u9a57\u8b49\uff1a<\/strong>\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u56b4\u683c\u7684\u9a57\u8b49\uff0c\u78ba\u4fdd\u5176\u7b26\u5408\u9810\u671f\u683c\u5f0f\u3002<\/li>\n<li><strong>\u6700\u5c0f\u6b0a\u9650\u539f\u5247\uff1a<\/strong>\u78ba\u4fdd\u6578\u64da\u5eab\u7528\u6236\u50c5\u64c1\u6709\u57f7\u884c\u5176\u4efb\u52d9\u6240\u9700\u7684\u6700\u4f4e\u6b0a\u9650\u3002<\/li>\n<li><strong>\u5b9a\u671f\u5b89\u5168\u6e2c\u8a66\uff1a<\/strong>\u5b9a\u671f\u9032\u884c\u5b89\u5168\u6e2c\u8a66\u548c\u4ee3\u78bc\u5be9\u67e5\uff0c\u4ee5\u767c\u73fe\u6f5b\u5728\u7684\u5b89\u5168\u6f0f\u6d1e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-guQfdIfzMS\">\u7d50\u8ad6<\/h2>\n<p>SQL \u6ce8\u5165\u662f\u4e00\u7a2e\u5371\u96aa\u7684\u653b\u64ca\u65b9\u5f0f\uff0c\u5c0d\u65bc\u4efb\u4f55\u4f9d\u8cf4\u6578\u64da\u5eab\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\uff0c\u9632\u7bc4\u6b64\u985e\u653b\u64ca\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u5be6\u65bd\u9069\u7576\u7684\u5b89\u5168\u63aa\u65bd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u964d\u4f4e SQL \u6ce8\u5165\u7684\u98a8\u96aa\uff0c\u4fdd\u8b77\u7528\u6236\u6578\u64da\u7684\u5b89\u5168\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u548c\u6578\u64da\u5b89\u5168\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3SQL\u6ce8\u5165\u7684\u5b9a\u4e49\u3001\u539f\u7406\u53ca\u9632\u62a4\u63aa\u65bd\uff0c\u4fdd\u62a4\u6570\u636e\u5e93\u5b89\u5168\uff0c\u9632\u6b62\u6076\u610f\u653b\u51fb\u548c\u6570\u636e\u6cc4\u9732\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-144095","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144095","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=144095"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144095\/revisions"}],"predecessor-version":[{"id":144096,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144095\/revisions\/144096"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=144095"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=144095"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=144095"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}