{"id":46897,"date":"2024-12-02T09:40:35","date_gmt":"2024-12-02T01:40:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/46897\/"},"modified":"2024-12-02T09:40:35","modified_gmt":"2024-12-02T01:40:35","slug":"php%e5%87%bd%e6%95%b0%e5%ae%89%e5%85%a8%e6%80%a7%e6%bc%8f%e6%b4%9e%e5%89%96%e6%9e%90%e4%b8%8e%e9%98%b2%e5%be%a1%e6%8e%aa%e6%96%bd","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/46897\/","title":{"rendered":"php\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd"},"content":{"rendered":"

<\/b> <\/p>\n

php\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd<\/h1>\n

\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u300aphp\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

\"php\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd\u63d2\u56fe\"<\/p>\n

PHP \u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

PHP \u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u811a\u672c\u8bed\u8a00\uff0c\u7528\u4e8e\u5f00\u53d1 Web \u5e94\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5bb9\u6613\u53d7\u5230\u4e00\u4e9b\u5e38\u89c1\u6f0f\u6d1e\u7684\u653b\u51fb\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u3002\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7\u6ce8\u5165\u6076\u610f\u4ee3\u7801\u6765\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002<\/p>\n

\u6f0f\u6d1e\u539f\u7406<\/strong><\/p>\n

\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u901a\u5e38\u53d1\u751f\u5728\u7528\u6237\u8f93\u5165\u6ca1\u6709\u88ab\u6b63\u786e\u8fc7\u6ee4\u7684\u60c5\u51b5\u4e0b\u3002\u5f53\u7528\u6237\u8f93\u5165\u88ab\u4f20\u9012\u7ed9\u672a\u7ecf\u9002\u5f53\u8fc7\u6ee4\u7684\u51fd\u6570\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u6784\u9020\u6076\u610f\u8f93\u5165\u6765\u89e6\u53d1\u6f0f\u6d1e\u3002<\/p>\n

\u4f8b\u5982\uff0c\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

<?php\n$input = $_GET['input'];\necho \"\u8f93\u5165: $input\";\n?><\/pre>\n
\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c$_GET['input']<\/code> \u7528\u6237\u8f93\u5165\u88ab\u4f20\u9012\u7ed9\u4e86 echo<\/code>\u3002\u5982\u679c\u653b\u51fb\u8005\u63d0\u4f9b\u4e00\u4e2a\u503c\u4e3a <script>alert('\u6076\u610f\u811a\u672c')<\/script><\/code> \u7684\u8f93\u5165\uff0c\u5b83\u5c06\u88ab\u89e3\u91ca\u4e3a HTML \u5e76\u6267\u884c\uff0c\u4ece\u800c\u5141\u8bb8\u653b\u51fb\u8005\u8fd0\u884c\u6076\u610f\u811a\u672c\u3002<\/p>\n
\u9632\u5fa1\u63aa\u65bd<\/strong><\/p>\n
\u4e3a\u4e86\u9632\u6b62\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\uff0c\u81f3\u5173\u91cd\u8981\u7684\u662f\u6b63\u786e\u8fc7\u6ee4\u548c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u9632\u5fa1\u63aa\u65bd\uff1a<\/p>\n
    \n
  • \u4f7f\u7528\u5b57\u7b26\u8fc7\u6ee4\uff1a<\/strong>\u4f7f\u7528 htmlspecialchars()<\/code> \u6216 filter_var()<\/code> \u7b49\u51fd\u6570\u8fc7\u6ee4\u7528\u6237\u8f93\u5165\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n
  • \u9a8c\u8bc1\u8f93\u5165\u7c7b\u578b\uff1a<\/strong>\u4f7f\u7528 filter_var()<\/code> \u6216\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\u8f93\u5165\u7684\u7c7b\u578b\uff0c\u4f8b\u5982\u6570\u5b57\u3001\u5b57\u6bcd\u6216\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002<\/li>\n
  • \u9650\u5236\u7528\u6237\u8f93\u5165\u957f\u5ea6\uff1a<\/strong>\u5bf9\u7528\u6237\u8f93\u5165\u7684\u957f\u5ea6\u8bbe\u7f6e\u6700\u5927\u503c\uff0c\u4ee5\u9632\u6b62\u62d2\u7edd\u670d\u52a1 (DoS) \u653b\u51fb\u3002<\/li>\n
  • \u4f7f\u7528\u767d\u540d\u5355\uff1a<\/strong>\u53ea\u5141\u8bb8\u7528\u6237\u63d0\u4f9b\u7b26\u5408\u9884\u5b9a\u4e49\u5217\u8868\u7684\u503c\u3002<\/li>\n
  • \u4f7f\u7528\u5b89\u5168\u51fd\u6570\uff1a<\/strong>\u4f7f\u7528\u5e26\u6709\u5185\u7f6e\u8fc7\u6ee4\u6216\u9a8c\u8bc1\u529f\u80fd\u7684\u51fd\u6570\uff0c\u4f8b\u5982 preg_match()<\/code> \u6216 filter_input()<\/code>\u3002<\/li>\n<\/ul>\n
    \u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
    \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u6218\u6848\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5229\u7528\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u548c\u5982\u4f55\u8fdb\u884c\u9632\u62a4\uff1a<\/p>\n
    \u6f0f\u6d1e\u4ee3\u7801\uff1a<\/strong><\/p>\n
    <?php\n$input = $_GET['input'];\neval($input); \/\/ \u6267\u884c\u7528\u6237\u8f93\u5165\u7684\u4ee3\u7801\n?><\/pre>\n
    \u5229\u7528\u4ee3\u7801\uff1a<\/strong><\/p>\n
    http:\/\/example.com\/?input=phpinfo(); \/\/ \u6267\u884c phpinfo()<\/pre>\n
    \u9632\u62a4\u4ee3\u7801\uff1a<\/strong><\/p>\n
    <?php\n$input = $_GET['input'];\necho \"\u8f93\u5165: \" . htmlspecialchars($input); \/\/ \u8fc7\u6ee4\u7528\u6237\u8f93\u5165\n?><\/pre>\n
    \u7ed3\u8bba<\/strong><\/p>\n
    \u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u9632\u5fa1\u63aa\u65bd\uff0c\u60a8\u53ef\u4ee5\u663e\u8457\u51cf\u5c11 PHP \u5e94\u7528\u7a0b\u5e8f\u4e2d\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u7684\u98ce\u9669\u3002\u901a\u8fc7\u6b63\u786e\u8fc7\u6ee4\u548c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\uff0c\u60a8\u53ef\u4ee5\u5e2e\u52a9\u4fdd\u62a4\u60a8\u7684\u5e94\u7528\u7a0b\u5e8f\u514d\u53d7\u653b\u51fb\u3002<\/p>\n
    \u672c\u7bc7\u5173\u4e8e\u300aphp\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    php\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd \u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u300aphp\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd\u300b\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01 PHP \u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5256\u6790\u4e0e\u9632\u5fa1\u63aa\u65bd \u7b80\u4ecb PHP \u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u811a\u672c\u8bed\u8a00\uff0c\u7528\u4e8e\u5f00\u53d1 Web \u5e94\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5bb9\u6613\u53d7\u5230\u4e00\u4e9b\u5e38\u89c1\u6f0f\u6d1e\u7684\u653b\u51fb\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u3002\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u5141\u8bb8\u653b\u51fb\u8005\u901a\u8fc7\u6ce8\u5165\u6076\u610f\u4ee3\u7801\u6765\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002 \u6f0f\u6d1e\u539f\u7406 \u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u901a\u5e38\u53d1\u751f\u5728\u7528\u6237\u8f93\u5165\u6ca1\u6709\u88ab\u6b63\u786e\u8fc7\u6ee4\u7684\u60c5\u51b5\u4e0b\u3002\u5f53\u7528\u6237\u8f93\u5165\u88ab\u4f20\u9012\u7ed9\u672a\u7ecf\u9002\u5f53\u8fc7\u6ee4\u7684\u51fd\u6570\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u4ee5\u6784\u9020\u6076\u610f\u8f93\u5165\u6765\u89e6\u53d1\u6f0f\u6d1e\u3002 \u4f8b\u5982\uff0c\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\uff1a <?php $input = $_GET[‘input’]; echo “\u8f93\u5165: $input”; ?> \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c$_GET[‘input’] \u7528\u6237\u8f93\u5165\u88ab\u4f20\u9012\u7ed9\u4e86 echo\u3002\u5982\u679c\u653b\u51fb\u8005\u63d0\u4f9b\u4e00\u4e2a\u503c\u4e3a <script>alert(‘\u6076\u610f\u811a\u672c’)<\/script> \u7684\u8f93\u5165\uff0c\u5b83\u5c06\u88ab\u89e3\u91ca\u4e3a HTML \u5e76\u6267\u884c\uff0c\u4ece\u800c\u5141\u8bb8\u653b\u51fb\u8005\u8fd0\u884c\u6076\u610f\u811a\u672c\u3002 \u9632\u5fa1\u63aa\u65bd \u4e3a\u4e86\u9632\u6b62\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\uff0c\u81f3\u5173\u91cd\u8981\u7684\u662f\u6b63\u786e\u8fc7\u6ee4\u548c\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u9632\u5fa1\u63aa\u65bd\uff1a \u4f7f\u7528\u5b57\u7b26\u8fc7\u6ee4\uff1a\u4f7f\u7528 htmlspecialchars() \u6216 filter_var() \u7b49\u51fd\u6570\u8fc7\u6ee4\u7528\u6237\u8f93\u5165\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26\u3002 \u9a8c\u8bc1\u8f93\u5165\u7c7b\u578b\uff1a\u4f7f\u7528 filter_var() \u6216\u6b63\u5219\u8868\u8fbe\u5f0f\u9a8c\u8bc1\u8f93\u5165\u7684\u7c7b\u578b\uff0c\u4f8b\u5982\u6570\u5b57\u3001\u5b57\u6bcd\u6216\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u3002 \u9650\u5236\u7528\u6237\u8f93\u5165\u957f\u5ea6\uff1a\u5bf9\u7528\u6237\u8f93\u5165\u7684\u957f\u5ea6\u8bbe\u7f6e\u6700\u5927\u503c\uff0c\u4ee5\u9632\u6b62\u62d2\u7edd\u670d\u52a1 (DoS) \u653b\u51fb\u3002 \u4f7f\u7528\u767d\u540d\u5355\uff1a\u53ea\u5141\u8bb8\u7528\u6237\u63d0\u4f9b\u7b26\u5408\u9884\u5b9a\u4e49\u5217\u8868\u7684\u503c\u3002 \u4f7f\u7528\u5b89\u5168\u51fd\u6570\uff1a\u4f7f\u7528\u5e26\u6709\u5185\u7f6e\u8fc7\u6ee4\u6216\u9a8c\u8bc1\u529f\u80fd\u7684\u51fd\u6570\uff0c\u4f8b\u5982 preg_match() \u6216 filter_input()\u3002 \u5b9e\u6218\u6848\u4f8b \u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b9e\u6218\u6848\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5229\u7528\u51fd\u6570\u5b89\u5168\u6027\u6f0f\u6d1e\u548c\u5982\u4f55\u8fdb\u884c\u9632\u62a4\uff1a \u6f0f\u6d1e\u4ee3\u7801\uff1a <?php $input = $_GET[‘input’]; eval($input); \/\/ \u6267\u884c\u7528\u6237\u8f93\u5165\u7684\u4ee3\u7801 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-46897","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=46897"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/46897\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=46897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=46897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=46897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}