{"id":209725,"date":"2025-10-23T21:20:04","date_gmt":"2025-10-23T13:20:04","guid":{"rendered":"https:\/\/www.server.hk\/blog\/209725\/"},"modified":"2025-10-23T21:20:05","modified_gmt":"2025-10-23T13:20:05","slug":"cdn-sql","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/209725\/","title":{"rendered":"CDN\u9632\u5fa1SQL\u6ce8\u5165\uff1a\u5173\u952e\u7b56\u7565\u4e0e\u5b9e\u6218\u914d\u7f6e\u6307\u5357"},"content":{"rendered":"<p>\u5728\u5f53\u4eca\u4e92\u8054\u7f51\u73af\u5883\u4e0b\uff0cSQL\u6ce8\u5165\uff08SQLi\uff09\u4ecd\u7136\u662f\u5bf9\u7f51\u7ad9\u548c\u5e94\u7528\u9020\u6210\u91cd\u5927\u5a01\u80c1\u7684\u6f0f\u6d1e\u7c7b\u578b\u4e4b\u4e00\u3002\u968f\u7740\u4e1a\u52a1\u5168\u7403\u5316\uff0c\u8d8a\u6765\u8d8a\u591a\u7ad9\u957f\u548c\u4f01\u4e1a\u9009\u62e9\u9999\u6e2f\u670d\u52a1\u5668\u3001\u7f8e\u56fd\u670d\u52a1\u5668\u6216\u5176\u4ed6\u6d77\u5916\u670d\u52a1\u5668\u90e8\u7f72\u5173\u952e\u670d\u52a1\uff0c\u7ed3\u5408CDN\uff08\u5185\u5bb9\u5206\u53d1\u7f51\u7edc\uff09\u8fdb\u884c\u9632\u62a4\u5df2\u6210\u4e3a\u5fc5\u9700\u624b\u6bb5\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\u3001\u6280\u672f\u5b9e\u73b0\u4e0e\u5b9e\u6218\u914d\u7f6e\u7b49\u65b9\u9762\uff0c\u4ecb\u7ecd\u5982\u4f55\u5229\u7528CDN\u9632\u5fa1SQL\u6ce8\u5165\uff0c\u5e76\u7ed9\u51fa\u9009\u8d2d\u4e0e\u90e8\u7f72\u5efa\u8bae\uff0c\u5e2e\u52a9\u8fd0\u7ef4\u3001\u5f00\u53d1\u8005\u4e0e\u4f01\u4e1a\u7528\u6237\u63d0\u9ad8\u6574\u4f53\u5b89\u5168\u6027\u3002<\/p>\n<h2>\u4e3a\u4ec0\u4e48\u5c06CDN\u4f5c\u4e3aSQL\u6ce8\u5165\u9632\u62a4\u5c42<\/h2>\n<p>\u4f20\u7edf\u7684\u9632\u5fa1\u4e3b\u8981\u96c6\u4e2d\u5728\u5e94\u7528\u5c42\uff08\u5982\u53c2\u6570\u5316\u67e5\u8be2\u3001ORM\u3001\u8f93\u5165\u6821\u9a8c\u548cWAF\uff09\uff0c\u800cCDN\u4f5c\u4e3a\u4f4d\u4e8e\u5ba2\u6237\u7aef\u4e0e\u6e90\u7ad9\u4e4b\u95f4\u7684\u8fb9\u7f18\u5c42\uff0c\u5177\u6709\u5929\u7136\u7684\u5206\u6d41\u3001\u7f13\u5b58\u548c\u5373\u65f6\u8fc7\u6ee4\u80fd\u529b\u3002<strong>\u901a\u8fc7\u5728\u8fb9\u7f18\u8fdb\u884c\u8bf7\u6c42\u68c0\u6d4b\u4e0e\u62e6\u622a\uff0c\u53ef\u4ee5\u5728\u653b\u51fb\u5230\u8fbe\u6e90\u7ad9\u4e4b\u524d\u963b\u65ad\u5927\u90e8\u5206\u6076\u610f\u6d41\u91cf<\/strong>\uff0c\u964d\u4f4e\u6e90\u7ad9\u8d1f\u8f7d\u5e76\u51cf\u5c11\u6570\u636e\u6cc4\u9732\u98ce\u9669\u3002\u5c24\u5176\u5bf9\u4e8e\u4f7f\u7528\u9999\u6e2fVPS\u3001\u7f8e\u56fdVPS\u6216\u65b0\u52a0\u5761\u670d\u52a1\u5668\u7b49\u90e8\u7f72\u5206\u652f\u4e1a\u52a1\u7684\u573a\u666f\uff0c\u501f\u52a9CDN\u8fd8\u80fd\u7edf\u4e00\u7b56\u7565\u3001\u5b9e\u73b0\u8de8\u533a\u57df\u9632\u62a4\u3002<\/p>\n<h2>\u539f\u7406\u4e0e\u5173\u952e\u6280\u672f\u7ec4\u4ef6<\/h2>\n<h3>\u8bf7\u6c42\u5206\u6790\u4e0e\u89c4\u5219\u5f15\u64ce<\/h3>\n<p>CDN\u9632\u62a4SQL\u6ce8\u5165\u7684\u7b2c\u4e00\u6b65\u662f\u5bf9HTTP\u8bf7\u6c42\u8fdb\u884c\u9759\u6001\u548c\u52a8\u6001\u5206\u6790\u3002\u5e38\u7528\u6280\u672f\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u57fa\u4e8e\u7b7e\u540d\u7684\u68c0\u6d4b\uff1a\u5339\u914d\u5df2\u77e5\u653b\u51fb\u6a21\u5f0f\uff0c\u5982 &#8220;&#8216; OR 1=1 &#8211;&#8220;\u3001UNION SELECT \u7b49\u5b57\u7b26\u4e32;<\/li>\n<li>\u57fa\u4e8e\u6b63\u5219\u4e0e\u8bed\u6cd5\u89e3\u6790\uff1a\u5bf9\u53c2\u6570\u3001URI\u3001\u8bf7\u6c42\u4f53\u8fdb\u884c\u6b63\u5219\u5339\u914d\u6216\u7b80\u5355SQL\u8bed\u6cd5\u8bc6\u522b\uff0c\u8bc6\u522b\u6ce8\u5165\u7247\u6bb5\uff08\u5982SQL\u5173\u952e\u5b57\u5728\u53c2\u6570\u5185\u7684\u5f02\u5e38\u7ec4\u5408\uff09\uff1b<\/li>\n<li>\u4e0a\u4e0b\u6587\u611f\u77e5\u68c0\u6d4b\uff1a\u8003\u8651\u53c2\u6570\u7c7b\u578b\uff08\u6574\u578b\u3001\u5b57\u7b26\u4e32\u3001\u65f6\u95f4\uff09\u4e0e\u9884\u671f\u683c\u5f0f\uff0c\u8bc6\u522b\u7c7b\u578b\u5f02\u5e38\uff1b<\/li>\n<li>\u884c\u4e3a\u5206\u6790\uff1a\u7ed3\u5408\u901f\u7387\u3001IP\u4fe1\u8a89\u4e0e\u4f1a\u8bdd\u884c\u4e3a\u5224\u65ad\u662f\u5426\u4e3a\u81ea\u52a8\u5316\u626b\u63cf\u6216\u653b\u51fb\u3002<\/li>\n<\/ul>\n<h3>\u865a\u62df\u4fee\u8865\u4e0eWAF\u89c4\u5219<\/h3>\n<p>CDN\u901a\u5e38\u96c6\u6210\u4e86WAF\u80fd\u529b\uff0c\u901a\u8fc7\u201c\u865a\u62df\u8865\u4e01\u201d\uff08virtual patching\uff09\u5bf9\u5df2\u77e5\u6f0f\u6d1e\u63d0\u4f9b\u4e34\u65f6\u9632\u62a4\u3002\u865a\u62df\u8865\u4e01\u901a\u8fc7\u81ea\u5b9a\u4e49\u89c4\u5219\u6216\u6258\u7ba1\u89c4\u5219\u96c6\uff08\u5982OWASP CRS\uff09\u6765\u963b\u65ad\u7279\u5f81\u6d41\u91cf\uff0c\u800c\u4e0d\u5fc5\u7acb\u5373\u6539\u52a8\u6e90\u4ee3\u7801\uff0c\u8fd9\u5bf9\u77ed\u671f\u5185\u65e0\u6cd5\u7acb\u523b\u4fee\u590d\u7684\u7b2c\u4e09\u65b9\u5e94\u7528\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<h3>\u8fb9\u7f18\u6267\u884c\u4e0e\u8fb9\u7f18\u51fd\u6570<\/h3>\n<p>\u73b0\u4ee3CDN\u652f\u6301\u8fb9\u7f18\u51fd\u6570\uff08Edge Functions\/Workers\uff09\uff0c\u53ef\u4ee5\u5728\u8fb9\u7f18\u8fd0\u884cJavaScript\u6216Lua\u7b49\u811a\u672c\uff0c\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u9a8c\u8bc1\u4e0e\u89e3\u7801\uff08\u4f8b\u5982\u5904\u7406Base64\u6216URL\u7f16\u7801\u7684payload\uff09\uff0c\u4ee5\u53ca\u52a8\u6001\u751f\u6210\u66f4\u4e25\u683c\u7684\u767d\u540d\u5355\u7b56\u7565\u3002<\/p>\n<h3>\u65e5\u5fd7\u4e0e\u53ef\u89c2\u6d4b\u6027<\/h3>\n<p>\u9632\u62a4\u6548\u679c\u4f9d\u8d56\u4e8e\u5168\u9762\u7684\u65e5\u5fd7\u4e0e\u544a\u8b66\u4f53\u7cfb\u3002CDN\u5e94\u8f93\u51fa\u8be6\u5c3d\u7684\u5339\u914d\u547d\u4e2d\u3001\u8bf7\u6c42\u6837\u672c\u548c\u5a01\u80c1\u8d8b\u52bf\uff0c\u4fbf\u4e8e\u7ed3\u5408SIEM\/IDS\u8fdb\u884c\u6df1\u5165\u5206\u6790\uff0c\u5e76\u914d\u5408\u6e90\u7ad9\u65e5\u5fd7\uff08\u5982\u6570\u636e\u5e93\u9519\u8bef\u3001\u6162\u67e5\u8be2\u65e5\u5fd7\uff09\u8fdb\u884c\u5173\u8054\u6392\u67e5\u3002<\/p>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u5b9e\u6218\u914d\u7f6e\u7b56\u7565<\/h2>\n<h3>\u573a\u666f\u4e00\uff1a\u516c\u5f00\u7f51\u7ad9\u4e0e\u7535\u5546\u5e73\u53f0<\/h3>\n<p>\u516c\u5f00\u8bbf\u95ee\u7684\u7f51\u7ad9\uff08\u4f8b\u5982\u7528\u9999\u6e2f\u670d\u52a1\u5668\u90e8\u7f72\u7684\u95e8\u6237\u6216\u7528\u65e5\u672c\u670d\u52a1\u5668\u6258\u7ba1\u7684\u5206\u7ad9\uff09\u9762\u5bf9\u5927\u91cf\u722c\u866b\u4e0e\u626b\u63cf\u3002\u63a8\u8350\u505a\u6cd5\uff1a<\/p>\n<ul>\n<li>\u542f\u7528\u6258\u7ba1WAF\u89c4\u5219\u96c6\uff08\u5305\u542bSQLi\u7b7e\u540d\uff09\uff1b<\/li>\n<li>\u5bf9\u63d0\u4ea4\u8868\u5355\u4e0eAPI\u4f7f\u7528\u5185\u5bb9\u7c7b\u578b\u6821\u9a8c\uff08Content-Type\uff09\u548c\u957f\u5ea6\u9650\u5236\uff1b<\/li>\n<li>\u914d\u5408CDN\u7f13\u5b58\u7b56\u7565\uff0c\u9759\u6001\u9875\u9762\u8d70\u7f13\u5b58\uff0c\u51cf\u5c11\u5bf9\u52a8\u6001\u63a5\u53e3\u7684\u76f4\u63a5\u6572\u51fb\uff1b<\/li>\n<li>\u4e3a\u5173\u952e\u63a5\u53e3\u8bbe\u7f6e\u901f\u7387\u9650\u5236\u4e0eIP\u4fe1\u8a89\u8fc7\u6ee4\u3002<\/li>\n<\/ul>\n<h3>\u573a\u666f\u4e8c\uff1aAPI\u4e0e\u5fae\u670d\u52a1<\/h3>\n<p>API\u7aef\u70b9\uff08\u5e38\u89c1\u4e8e\u79fb\u52a8\u540e\u7aef\uff09\u5bf9\u53c2\u6570\u7c7b\u578b\u654f\u611f\u3002\u914d\u7f6e\u5efa\u8bae\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u57fa\u4e8eJSON\u6a21\u5f0f\u7684\u767d\u540d\u5355\u6821\u9a8c\uff1a\u786e\u4fdd\u5b57\u6bb5\u5b58\u5728\u4e14\u7c7b\u578b\u6b63\u786e\uff1b<\/li>\n<li>\u4e3aSQL\u654f\u611f\u63a5\u53e3\u5173\u95ed\u6216\u6700\u5c0f\u5316\u8fb9\u7f18\u7f13\u5b58\uff0c\u6539\u7528\u66f4\u4e25\u683c\u7684\u8fb9\u7f18\u6821\u9a8c\uff1b<\/li>\n<li>\u7ed3\u5408JWT\/\u5e94\u7528\u5c42\u8eab\u4efd\u9a8c\u8bc1\uff0c\u51cf\u5c11\u672a\u8ba4\u8bc1\u8bf7\u6c42\u5bf9\u540e\u7aef\u7684\u63a5\u89e6\uff1b<\/li>\n<li>\u5bf9POST\/PUT\/DELETE\u7b49\u5199\u64cd\u4f5c\u542f\u7528\u66f4\u4e25\u683c\u7684WAF\u89c4\u5219\u4e0e\u901f\u7387\u9650\u5236\u3002<\/li>\n<\/ul>\n<h3>\u573a\u666f\u4e09\uff1a\u5206\u5e03\u5f0f\u4e0e\u591a\u533a\u57df\u90e8\u7f72<\/h3>\n<p>\u5bf9\u4e8e\u4f7f\u7528\u7f8e\u56fdVPS\u3001\u97e9\u56fd\u670d\u52a1\u5668\u6216\u5206\u5e03\u5728\u4e0d\u540c\u533a\u57df\u7684\u8282\u70b9\uff0c\u5efa\u8bae\u542f\u7528\u7edf\u4e00\u7b56\u7565\u5e76\u7ed3\u5408\u6e90\u7ad9\u4fdd\u62a4\uff1a<\/p>\n<ul>\n<li>\u5728CDN\u4fa7\u6267\u884c\u7edf\u4e00\u7684\u57fa\u7ebfWAF\u89c4\u5219\u4e0e\u5f02\u5e38\u68c0\u6d4b\uff1b<\/li>\n<li>\u542f\u7528Origin 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