{"id":155759,"date":"2024-11-02T19:10:21","date_gmt":"2024-11-02T11:10:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/155759\/"},"modified":"2024-11-02T19:10:22","modified_gmt":"2024-11-02T11:10:22","slug":"%e9%98%b2%e7%af%84%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%ef%bc%8c%e8%ac%b9%e9%98%b2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab-%e6%b3%a8%e5%85%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/155759\/","title":{"rendered":"\u9632\u7bc4\u6578\u64da\u5b89\u5168\uff0c\u8b39\u9632\u6578\u64da\u5eab\u6ce8\u5165\uff08\u6578\u64da\u5eab \u6ce8\u5165\uff09"},"content":{"rendered":"<h1 id=\"%e9%98%b2%e7%af%84%e6%95%b8%e6%93%9a%e5%ae%89%e5%85%a8%ef%bc%8c%e8%ac%b9%e9%98%b2%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%ef%bc%89-BuRKhZapkP\">\u9632\u7bc4\u6578\u64da\u5b89\u5168\uff0c\u8b39\u9632\u6578\u64da\u5eab\u6ce8\u5165\uff08\u6578\u64da\u5eab\u6ce8\u5165\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u4f4d\u5316\u7684\u6642\u4ee3\uff0c\u6578\u64da\u5b89\u5168\u5df2\u6210\u70ba\u4f01\u696d\u548c\u500b\u4eba\u6700\u95dc\u6ce8\u7684\u8b70\u984c\u4e4b\u4e00\u3002\u96a8\u8457\u7db2\u7d61\u61c9\u7528\u7a0b\u5e8f\u7684\u666e\u53ca\uff0c\u6578\u64da\u5eab\u6ce8\u5165\uff08SQL Injection\uff09\u653b\u64ca\u4e5f\u65e5\u76ca\u7316\u7357\u3002\u9019\u7a2e\u653b\u64ca\u624b\u6cd5\u5229\u7528\u61c9\u7528\u7a0b\u5e8f\u5c0d\u7528\u6236\u8f38\u5165\u7684\u8655\u7406\u4e0d\u7576\uff0c\u5c07\u60e1\u610fSQL\u4ee3\u78bc\u63d2\u5165\u5230\u67e5\u8a62\u4e2d\uff0c\u5f9e\u800c\u64cd\u63a7\u6578\u64da\u5eab\uff0c\u7aca\u53d6\u6216\u7834\u58de\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406\u3001\u5f71\u97ff\u53ca\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%8e%9f%e7%90%86-BuRKhZapkP\">\u6578\u64da\u5eab\u6ce8\u5165\u7684\u539f\u7406<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u653b\u64ca\u901a\u5e38\u767c\u751f\u5728\u61c9\u7528\u7a0b\u5e8f\u672a\u5c0d\u7528\u6236\u8f38\u5165\u9032\u884c\u5145\u5206\u9a57\u8b49\u548c\u904e\u6ffe\u7684\u60c5\u6cc1\u4e0b\u3002\u653b\u64ca\u8005\u53ef\u4ee5\u901a\u904e\u5728\u8f38\u5165\u5b57\u6bb5\u4e2d\u63d2\u5165\u7279\u88fd\u7684SQL\u4ee3\u78bc\uff0c\u4f86\u6539\u8b8a\u539f\u672c\u7684\u67e5\u8a62\u908f\u8f2f\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u4e00\u500b\u767b\u9304\u8868\u55ae\u7684SQL\u67e5\u8a62\u5982\u4e0b\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE username = 'user' AND password = 'pass';<\/code><\/pre>\n<p>\u5982\u679c\u653b\u64ca\u8005\u5728\u7528\u6236\u540d\u5b57\u6bb5\u4e2d\u8f38\u5165\uff1a<\/p>\n<pre><code>' OR '1'='1<\/code><\/pre>\n<p>\u90a3\u9ebc\u6700\u7d42\u7684SQL\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>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u59cb\u7d42\u8fd4\u56de\u771f\uff0c\u653b\u64ca\u8005\u4fbf\u80fd\u5920\u7e5e\u904e\u8eab\u4efd\u9a57\u8b49\uff0c\u7372\u53d6\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u6b0a\u9650\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%b3%a8%e5%85%a5%e7%9a%84%e5%bd%b1%e9%9f%bf-BuRKhZapkP\">\u6578\u64da\u5eab\u6ce8\u5165\u7684\u5f71\u97ff<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u653b\u64ca\u7684\u5f8c\u679c\u53ef\u80fd\u662f\u707d\u96e3\u6027\u7684\u3002\u653b\u64ca\u8005\u53ef\u4ee5\uff1a<\/p>\n<ul>\n<li>\u7aca\u53d6\u654f\u611f\u6578\u64da\uff0c\u5982\u7528\u6236\u540d\u3001\u5bc6\u78bc\u3001\u4fe1\u7528\u5361\u4fe1\u606f\u7b49\u3002<\/li>\n<li>\u4fee\u6539\u6216\u522a\u9664\u6578\u64da\uff0c\u5c0e\u81f4\u6578\u64da\u5b8c\u6574\u6027\u53d7\u5230\u640d\u5bb3\u3002<\/li>\n<li>\u57f7\u884c\u7ba1\u7406\u64cd\u4f5c\uff0c\u5982\u5275\u5efa\u65b0\u7528\u6236\u6216\u66f4\u6539\u6b0a\u9650\u3002<\/li>\n<li>\u5c0e\u81f4\u670d\u52d9\u4e2d\u65b7\uff0c\u5f71\u97ff\u696d\u52d9\u904b\u71df\u3002<\/li>\n<\/ul>\n<p>\u6839\u64da\u4e00\u9805\u7814\u7a76\uff0c\u8d85\u904e 60% \u7684\u7db2\u7d61\u653b\u64ca\u90fd\u662f\u7531\u6578\u64da\u5eab\u6ce8\u5165\u5f15\u8d77\u7684\uff0c\u9019\u986f\u793a\u4e86\u5176\u6f5b\u5728\u7684\u5371\u5bb3\u6027\u3002<\/p>\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-BuRKhZapkP\">\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\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u63aa\u65bd\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e9%a0%90%e8%99%95%e7%90%86%e8%aa%9e%e5%8f%a5%ef%bc%88prepared-statements%ef%bc%89-BuRKhZapkP\">1. \u4f7f\u7528\u9810\u8655\u7406\u8a9e\u53e5\uff08Prepared Statements\uff09<\/h3>\n<p>\u9810\u8655\u7406\u8a9e\u53e5\u53ef\u4ee5\u5c07SQL\u67e5\u8a62\u8207\u7528\u6236\u8f38\u5165\u5206\u958b\uff0c\u5f9e\u800c\u9632\u6b62\u60e1\u610f\u4ee3\u78bc\u7684\u57f7\u884c\u3002\u4f8b\u5982\uff0c\u4f7f\u7528PHP\u7684PDO\u64f4\u5c55\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>$stmt = $pdo-&gt;prepare('SELECT * FROM users WHERE username = :username AND password = :password');\n$stmt-&gt;execute(['username' =&gt; $user, 'password' =&gt; $pass]);<\/code><\/pre>\n<h3 id=\"2-%e8%bc%b8%e5%85%a5%e9%a9%97%e8%ad%89%e5%92%8c%e9%81%8e%e6%bf%be-BuRKhZapkP\">2. \u8f38\u5165\u9a57\u8b49\u548c\u904e\u6ffe<\/h3>\n<p>\u5c0d\u6240\u6709\u7528\u6236\u8f38\u5165\u9032\u884c\u56b4\u683c\u7684\u9a57\u8b49\u548c\u904e\u6ffe\uff0c\u78ba\u4fdd\u53ea\u63a5\u53d7\u9810\u671f\u683c\u5f0f\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5c0d\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u9032\u884c\u6b63\u5247\u8868\u9054\u5f0f\u6aa2\u67e5\uff0c\u6216\u5c0d\u6578\u5b57\u9032\u884c\u7bc4\u570d\u9650\u5236\u3002<\/p>\n<h3 id=\"3-%e6%9c%80%e5%b0%8f%e6%ac%8a%e9%99%90%e5%8e%9f%e5%89%87-BuRKhZapkP\">3. \u6700\u5c0f\u6b0a\u9650\u539f\u5247<\/h3>\n<p>\u78ba\u4fdd\u6578\u64da\u5eab\u7528\u6236\u50c5\u64c1\u6709\u57f7\u884c\u5176\u4efb\u52d9\u6240\u9700\u7684\u6700\u4f4e\u6b0a\u9650\u3002\u9019\u6a23\uff0c\u5373\u4f7f\u653b\u64ca\u8005\u6210\u529f\u5165\u4fb5\uff0c\u4e5f\u80fd\u5c07\u640d\u5bb3\u964d\u5230\u6700\u4f4e\u3002<\/p>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e5%ae%89%e5%85%a8%e6%b8%ac%e8%a9%a6-BuRKhZapkP\">4. \u5b9a\u671f\u5b89\u5168\u6e2c\u8a66<\/h3>\n<p>\u5b9a\u671f\u9032\u884c\u5b89\u5168\u6e2c\u8a66\u548c\u4ee3\u78bc\u5be9\u67e5\uff0c\u4ee5\u767c\u73fe\u6f5b\u5728\u7684\u6f0f\u6d1e\u4e26\u53ca\u6642\u4fee\u88dc\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-BuRKhZapkP\">\u7d50\u8ad6<\/h2>\n<p>\u6578\u64da\u5eab\u6ce8\u5165\u662f\u4e00\u7a2e\u5e38\u898b\u4e14\u5371\u96aa\u7684\u7db2\u7d61\u653b\u64ca\u624b\u6cd5\uff0c\u5c0d\u4f01\u696d\u548c\u500b\u4eba\u90fd\u53ef\u80fd\u9020\u6210\u56b4\u91cd\u640d\u5bb3\u3002\u901a\u904e\u5be6\u65bd\u9810\u8655\u7406\u8a9e\u53e5\u3001\u8f38\u5165\u9a57\u8b49\u3001\u6700\u5c0f\u6b0a\u9650\u539f\u5247\u4ee5\u53ca\u5b9a\u671f\u5b89\u5168\u6e2c\u8a66\u7b49\u63aa\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u6578\u64da\u5eab\u6ce8\u5165\u7684\u98a8\u96aa\u3002\u96a8\u8457\u7db2\u7d61\u5b89\u5168\u5a01\u8105\u7684\u65e5\u76ca\u589e\u52a0\uff0c\u4f01\u696d\u5fc5\u9808\u91cd\u8996\u6578\u64da\u5b89\u5168\uff0c\u4fdd\u8b77\u81ea\u8eab\u548c\u7528\u6236\u7684\u654f\u611f\u4fe1\u606f\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/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>\u9632\u7bc4\u6578\u64da\u5b89\u5168\uff0c\u8b39\u9632\u6578\u64da\u5eab\u6ce8\u5165\u653b\u64ca\uff0c\u4fdd\u8b77\u654f\u611f\u4fe1\u606f\uff0c\u78ba\u4fdd\u7cfb\u7d71\u7a69\u5b9a\u904b\u884c\uff0c\u7dad\u8b77\u7528\u6236\u4fe1\u4efb\u8207\u5b89\u5168\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-155759","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/155759","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=155759"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/155759\/revisions"}],"predecessor-version":[{"id":155760,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/155759\/revisions\/155760"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=155759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=155759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=155759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}