{"id":196227,"date":"2024-11-13T21:32:26","date_gmt":"2024-11-13T13:32:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196227\/"},"modified":"2024-11-13T21:32:27","modified_gmt":"2024-11-13T13:32:27","slug":"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e5%8e%9f%e7%90%86%ef%bc%8c%e9%98%b2%e7%af%84%e5%ae%89%e5%85%a8%e9%a2%a8%e9%9a%aa%ef%bc%81-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196227\/","title":{"rendered":"\u638c\u63e1\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406\uff0c\u9632\u7bc4\u5b89\u5168\u98a8\u96aa\uff01 (\u6578\u64da\u5eab\u6ce8\u5165\u539f\u7406)"},"content":{"rendered":"<h1 id=\"%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e5%8e%9f%e7%90%86%ef%bc%8c%e9%98%b2%e7%af%84%e5%ae%89%e5%85%a8%e9%a2%a8%e9%9a%aa%ef%bc%81-VCgsHNAXgl\">\u638c\u63e1\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406\uff0c\u9632\u7bc4\u5b89\u5168\u98a8\u96aa\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u4f4d\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u6ce8\u5165\uff08SQL Injection\uff09\u5df2\u6210\u70ba\u7db2\u7d61\u5b89\u5168\u9818\u57df\u4e2d\u6700\u5e38\u898b\u7684\u653b\u64ca\u624b\u6bb5\u4e4b\u4e00\u3002\u9019\u7a2e\u653b\u64ca\u65b9\u5f0f\u5229\u7528\u4e86\u61c9\u7528\u7a0b\u5f0f\u5c0d\u7528\u6236\u8f38\u5165\u7684\u8655\u7406\u4e0d\u7576\uff0c\u5f9e\u800c\u4f7f\u653b\u64ca\u8005\u80fd\u5920\u57f7\u884c\u672a\u7d93\u6388\u6b0a\u7684SQL\u8a9e\u53e5\uff0c\u9032\u800c\u8a2a\u554f\u6216\u64cd\u63a7\u6578\u64da\u5eab\u4e2d\u7684\u654f\u611f\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406\u53ca\u5176\u9632\u7bc4\u63aa\u65bd\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-VCgsHNAXgl\">\u6578\u64da\u5eab\u6ce8\u5165\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u7684\u6838\u5fc3\u5728\u65bc\u653b\u64ca\u8005\u80fd\u5920\u5c07\u60e1\u610f\u7684SQL\u4ee3\u78bc\u63d2\u5165\u5230\u61c9\u7528\u7a0b\u5f0f\u7684\u67e5\u8a62\u4e2d\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u61c9\u7528\u7a0b\u5f0f\u672a\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u9069\u7576\u7684\u9a57\u8b49\u548c\u904e\u6ffe\u6642\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = 'user_input' AND password = 'user_password';<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u5047\u8a2d\u7528\u6236\u8f38\u5165\u7684\u5167\u5bb9\u672a\u7d93\u904e\u6ffe\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\u7684SQL\u67e5\u8a62\u5c07\u8b8a\u6210\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = '' OR '1'='1'; --' AND password = 'user_password';<\/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=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e9%a1%9e%e5%9e%8b-VCgsHNAXgl\">\u6578\u64da\u5eab\u6ce8\u5165\u7684\u985e\u578b<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u53ef\u4ee5\u5206\u70ba\u5e7e\u7a2e\u985e\u578b\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6a19\u6e96SQL\u6ce8\u5165\uff1a<\/strong>\u6700\u5e38\u898b\u7684\u5f62\u5f0f\uff0c\u901a\u904e\u64cd\u63a7SQL\u67e5\u8a62\u4f86\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li><strong>\u76f2\u6ce8\uff1a<\/strong>\u653b\u64ca\u8005\u7121\u6cd5\u76f4\u63a5\u770b\u5230\u6578\u64da\uff0c\u4f46\u53ef\u4ee5\u901a\u904e\u53cd\u994b\u7684\u884c\u70ba\u63a8\u6e2c\u6578\u64da\u3002<\/li>\n<li><strong>\u57fa\u65bc\u6642\u9593\u7684\u76f2\u6ce8\uff1a<\/strong>\u901a\u904e\u5ef6\u9072\u97ff\u61c9\u6642\u9593\u4f86\u63a8\u6e2c\u6578\u64da\u7684\u5b58\u5728\u8207\u5426\u3002<\/li>\n<li><strong>\u7b2c\u4e8c\u968e\u6bb5\u6ce8\u5165\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u5229\u7528\u7b2c\u4e00\u500b\u6ce8\u5165\u7684\u7d50\u679c\u9032\u884c\u9032\u4e00\u6b65\u7684\u653b\u64ca\u3002<\/li>\n<\/ul>\n<h2 id=\"%e9%98%b2%e7%af%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e6%8e%aa%e6%96%bd-VCgsHNAXgl\">\u9632\u7bc4\u6578\u64da\u5eab\u6ce8\u5165\u7684\u63aa\u65bd<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u9632\u7bc4\u6578\u64da\u5eab\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\uff08Prepared Statements\uff09\u80fd\u5920\u5c07SQL\u4ee3\u78bc\u8207\u7528\u6236\u8f38\u5165\u5206\u958b\uff0c\u5f9e\u800c\u9632\u6b62\u6ce8\u5165\u3002\u4f8b\u5982\uff1a<\/li>\n<pre><code>stmt = conn.prepareStatement(\"SELECT * FROM users WHERE username = ? AND password = ?\");<\/code><\/pre>\n<li><strong>\u8f38\u5165\u9a57\u8b49\uff1a<\/strong>\u5c0d\u6240\u6709\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>\u6578\u64da\u5eab\u7528\u6236\u61c9\u8a72\u50c5\u64c1\u6709\u57f7\u884c\u5176\u4efb\u52d9\u6240\u9700\u7684\u6700\u5c0f\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-VCgsHNAXgl\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u662f\u4e00\u7a2e\u5371\u96aa\u7684\u653b\u64ca\u65b9\u5f0f\uff0c\u5c0d\u4f01\u696d\u548c\u7528\u6236\u7684\u6578\u64da\u5b89\u5168\u69cb\u6210\u4e86\u56b4\u91cd\u5a01\u8105\u3002\u901a\u904e\u4e86\u89e3\u5176\u539f\u7406\u548c\u985e\u578b\uff0c\u4e26\u63a1\u53d6\u9069\u7576\u7684\u9632\u7bc4\u63aa\u65bd\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u9019\u7a2e\u653b\u64ca\u7684\u98a8\u96aa\u3002\u96a8\u8457\u7db2\u7d61\u5b89\u5168\u5a01\u8105\u7684\u65e5\u76ca\u589e\u52a0\uff0c\u4fdd\u6301\u8b66\u60d5\u4e26\u6301\u7e8c\u66f4\u65b0\u5b89\u5168\u77e5\u8b58\u662f\u6bcf\u500b\u958b\u767c\u8005\u7684\u8cac\u4efb\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406\uff0c\u5b78\u7fd2\u5982\u4f55\u9632\u7bc4\u5b89\u5168\u98a8\u96aa\uff0c\u4fdd\u8b77\u60a8\u7684\u61c9\u7528\u7a0b\u5f0f\u548c\u6578\u64da\u5b89\u5168\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\uff01<\/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-196227","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196227","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=196227"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196227\/revisions"}],"predecessor-version":[{"id":196228,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196227\/revisions\/196228"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}