{"id":1089,"date":"2011-03-16T12:38:45","date_gmt":"2011-03-16T04:38:45","guid":{"rendered":"http:\/\/localhost\/portal\/2011\/03\/16\/sql-injection\/"},"modified":"2011-03-16T12:38:45","modified_gmt":"2011-03-16T04:38:45","slug":"sql-injection","status":"publish","type":"post","link":"https:\/\/www.cyberhunter.com.tw\/?p=1089","title":{"rendered":"\u5a01\u8105\u8cc7\u6599\u5b58\u53d6\u7684SQL Injection"},"content":{"rendered":"<p>\u6587\/\u738b\u5efa\u8208 (\u6e05\u83ef\u8cc7\u5de5\u6240\u535a\u58eb\u73ed\u7814\u7a76\u751f) 2011-03-15<\/p>\n<table width=\"100%\" cellspacing=\"0\" cellpadding=\"0\" border=\"0\" class=\"Bpadd\">\n<tbody>\n<tr>\n<td class=\"text13b\">\u64b0\u5beb\u5b89\u5168\u7684\u7a0b\u5f0f\u78bc  \u7b2c4\u56de&nbsp;SQL Injection\u653b\u64ca\u4e5f\u662f\u60e1\u540d\u662d\u5f70\uff0c\u800c\u4e14\u81f3\u4eca\u4ecd\u662f\u76f8\u7576\u666e\u53ca\u3001\u4e0d\u6613\u6839\u9664\u7684\u8cc7\u5b89\u5a01\u8105\uff0c\u56e0\u6b64\u7a0b\u5f0f\u958b\u767c\u8005\u9700\u6ce8\u610fSQL\u8ff0\u53e5\u642d\u914d\u4f7f\u7528\u8005\u8f38\u5165\u8cc7\u6599\u7684\u5f8c\u679c <\/td>\n<\/tr>\n<tr>\n<td class=\"text20\">&nbsp;<\/td>\n<\/tr>\n<tr>\n<td class=\"text15\">\u5728\u524d\u4e00\u56de\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86\u5728\u7a0b\u5f0f\u78bc\u5b89\u5168\u6027\u4e0a\u4e00\u500b\u6700\u5927\u7684\u5a01\u8105\uff0c\u4e5f\u5c31\u662f\u7de9\u885d\u5340\u6ea2\u4f4d\u7684\u653b\u64ca\u3002\u9019\u7a2e\u653b\u64ca\u7684\u6a21\u5f0f\uff0c\u5c0d\u65bc\u7db2\u8def\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\uff0c\u5c24\u5176\u80fd\u9020\u6210\u53ef\u6015\u7684\u50b7\u5bb3\u3002 <\/p>\n<p>            \u6240\u5e78\uff0c\u8fd1\u5e74\u4f86\u7de9\u885d\u5340\u6ea2\u4f4d\u653b\u64ca\u7684\u624b\u6cd5\u5df2\u7372\u5f97\u666e\u904d\u7684\u91cd\u8996\uff0c\u9664\u4e86\u65b0\u578b\u7684\u7a0b\u5f0f\u8a9e\u8a00\u91dd\u5c0d\u6b64\u505a\u4e86\u52a0\u5f37\u4e4b\u5916\uff0c\u8af8\u5982C\/C++\u7b49\u7a0b\u5f0f\u8a9e\u8a00\u4e5f\u5229\u7528\u5b57\u4e32\u7a0b\u5f0f\u5eab\u7684\u6539\u9032\u4f86\u5f37\u5316\u5b89\u5168\u6027\u3002\u63a5\u4e0b\u4f86\uff0c\u4fbf\u662f\u7a0b\u5f0f\u8a2d\u8a08\u8005\u7684\u81ea\u6211\u610f\u8b58\u8981\u63d0\u9ad8\u8b66\u5099\uff0c\u91dd\u5c0d\u7de9\u885d\u5340\u6ea2\u4f4d\u653b\u64ca\u8655\u8655\u52a0\u4ee5\u9632\u7bc4\u3002 <\/p>\n<p>            \u9664\u4e86\u7de9\u885d\u5340\u653b\u64ca\u4e4b\u5916\uff0c\u9019\u5e7e\u5e74\u4f86\u6d41\u884c\u7684\u53e6\u4e00\u500b\u653b\u64ca\uff0c\u540c\u6a23\u4e5f\u662f\u53ef\u4ee5\u5f9e\u4e0d\u7279\u5b9a\u7684\u5927\u773e\u4f86\u767c\u52d5\u7684\u3002\u56e0\u70ba\uff0c\u4e00\u4e9b\u91dd\u5c0d\u5927\u773e\u63d0\u4f9b\u670d\u52d9\u7684\u7cfb\u7d71\u6216\u662f\u7db2\u7ad9\uff0c\u90fd\u53ef\u80fd\u5177\u5099\u9019\u6a23\u7684\u5b89\u5168\u6027\u7f3a\u9677\uff0c\u4f7f\u5f97\u6709\u5fc3\u4eba\u58eb\u53ef\u4ee5\u52a0\u4ee5\u5229\u7528\uff0c\u4e26\u4e14\u9032\u4e00\u6b65\u9032\u884c\u653b\u64ca\u3002\u5b83\u5c31\u662f\u6240\u8b02\u7684\u8cc7\u6599\u96b1\u78bc\uff08SQL Injection\uff09\u653b\u64ca\u3002 <\/p>\n<p>            <strong>\u70ba\u4ec0\u9ebc\u6703\u6709SQL Injection\uff1f<\/strong> <br \/>\n            SQL\uff08Structured Query Language\uff09\u662f\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u7cfb\u7d71\u7528\u4f86\u505a\u70ba\u67e5\u8a62\u53ca\u64cd\u4f5c\u8cc7\u6599\u5eab\u7684\u4e00\u7a2e\u8a9e\u8a00\u3002\u5728\u73fe\u4eca\uff0c\u7d55\u5927\u591a\u6578\u7684\u7db2\u7ad9\u6216\u5546\u696d\u7cfb\u7d71\uff0c\u90fd\u6703\u5229\u7528\u95dc\u806f\u5f0f\u8cc7\u6599\u5eab\u4f86\u5132\u5b58\u5b83\u5011\u7684\u8cc7\u6599\uff0c\u7576\u7136\uff0c\u7a0b\u5f0f\u4e5f\u90fd\u6703\u900f\u904eSQL\u4f86\u5c0d\u8cc7\u6599\u9032\u884c\u64cd\u4f5c\u3002 <\/p>\n<p>            \u800c\u6240\u8b02\u7684SQL\u6ce8\u5165\uff0c\u4fbf\u662f\u7576\u7db2\u7ad9\u6216\u7cfb\u7d71\u5141\u8a31\u4f7f\u7528\u8005\u9032\u884c\u4e00\u4e9b\u8cc7\u6599\u8f38\u5165\u7684\u52d5\u4f5c\u6642\uff0c\u5c07\u4e0d\u61f7\u597d\u610f\u7684\u90e8\u4efdSQL\u8ff0\u53e5\u5167\u5bb9\uff0c\u7576\u505a\u662f\u8cc7\u6599\u4f86\u63d0\u4f9b\uff0c\u800c\u56e0\u70ba\u7db2\u7ad9\u6216\u7cfb\u7d71\u53ef\u80fd\u5c07 \u4f7f\u7528\u8005\u6240\u8f38\u5165\u7684\u8cc7\u6599\uff0c\u62ff\u53bb\u7d44\u6210\u6700\u5f8c\u8981\u5728\u8cc7\u6599\u5eab\u4e0a\u57f7\u884c\u7684SQL\u8ff0\u53e5\uff0c\u6700\u5f8c\u5c31\u6703\u5f97\u5230\u4e00\u500b\u4e0d\u5728\u7a0b\u5f0f\u8a2d\u8a08\u8005\u9810\u6599\u4e2d\u3001\u800c\u662f\u6709\u5fc3\u4eba\u58eb\u523b\u610f\u88fd\u9020\u51fa\u4f86\u7684SQL\u8ff0\u53e5\u3002\u56e0\u70ba\u662f \u5728\u8cc7\u6599\u4e2d\u6697\u85cf\u7a0b\u5f0f\u78bc\uff0c\u6240\u4ee5\u624d\u6703\u88ab\u7a31\u70ba\u662f\u300c\u8cc7\u6599\u96b1\u78bc\u300d\u653b\u64ca\u3002 <\/p>\n<p>            \u4e00\u500b\u6700\u7c21\u55ae\u3001\u4f46\u662f\u53c8\u80fd\u8aaa\u660e\u8cc7\u6599\u96b1\u78bc\u653b\u64ca\u7684\u4f8b\u5b50\uff0c\u5c31\u662f\u7dad\u57fa\u767e\u79d1\u4e0a\u95dc\u65bc\u300cSQL\u8cc7\u6599\u96b1\u78bc\u653b\u64ca\u300d\u9019\u500b\u689d\u76ee\u7684\u8aaa\u660e\u7bc4\u4f8b\u4e86\uff1a <\/p>\n<p>            \u4f8b\u5982\uff1a\u67d0\u500b\u7db2\u7ad9\u7684\u767b\u5165\u9a57\u8b49SQL\u67e5\u8a62\u4ee3\u78bc\u70ba\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">strSQL = &quot;SELECT * FROM users WHERE (name = &#8216;&quot; + userName + &quot;&#8217;) and (pw = &#8216;&quot;+ passWord +&quot;&#8217;);&quot;<\/font> <\/p>\n<p>            \u9019\u662f\u591a\u5e74\u524d\u5f88\u5e38\u898b\u5230\u3001\u7528\u4f86\u8a8d\u8b49\u4f7f\u7528\u8005\u8f38\u5165\u7684\u540d\u7a31\u548c\u5bc6\u78bc\u662f\u5426\u6b63\u78ba\u3002\u8cc7\u6599\u5eab\u4e2d\u53ef\u80fd\u7528\u4e00\u500b\u53eb\u505ausers\u7684\u8868\u683c\uff0c\u88e1\u982d\u6709\u4e00\u500b\u53ebname\u7684\u6b04\u4f4d\u7528\u4f86\u5132\u5b58\u4f7f\u7528\u8005\u7684\u540d \u7a31\uff0c\u53e6\u5916\u9084\u6709\u500bpw\u7684\u6b04\u4f4d\uff0c\u7528\u4f86\u8a18\u9304\u4f7f\u7528\u8005\u7684\u5bc6\u78bc\u3002\u6700\u5e38\u898b\u5230\u7684\u5beb\u6cd5\uff0c\u5c31\u662f\u8b93\u4f7f\u7528\u8005\u5728\u700f\u89bd\u5668\u7684\u8868\u683c\u4e2d\u5206\u5225\u8f38\u5165\u540d\u7a31\u548c\u5bc6\u78bc\uff0c\u4e00\u65e6\u4f7f\u7528\u8005\u9001\u51fa\u8a72\u8868\u683c\u5f8c\uff0c\u7a0b\u5f0f\u78bc\u5c31 \u539f\u5c01\u4e0d\u52d5\uff0c\u628a\u540d\u7a31\u548c\u5bc6\u78bc\u62ff\u53bb\u7d44\u6210\u4e0a\u4f8b\u4e2dstrSQL\u3002\u7576\u5728\u8cc7\u6599\u5eab\u57f7\u884c\u9019\u6bb5SQL\u80fd\u53d6\u5f97\u8cc7\u6599\u6642\uff0c\u4fbf\u4ee3\u8868\u4f7f\u7528\u8005\u6240\u8f38\u5165\u7684\u540d\u7a31\u53ca\u5bc6\u78bc\uff0c\u662f\u548c\u8cc7\u6599\u5eab\u4e2d\u6240\u8a18\u8f09\u7684\u5167\u5bb9 \u76f8\u5339\u914d\uff0c\u4e5f\u5c31\u662f\u6b63\u78ba\uff0c\u6b64\u6642\u4fbf\u53ef\u4ee5\u5141\u8a31\u4f7f\u7528\u8005\u767b\u5165\u3002 <\/p>\n<p>            \u5514\uff0c\u770b\u8d77\u4f86\u5f88\u6b63\u5e38\u561b\uff0c\u6709\u4ec0\u9ebc\u4e0d\u5c0d\u52c1\u55ce\uff1f\u6216\u8a31\u7a0b\u5f0f\u8a2d\u8a08\u8005\u5f9e\u4f86\u6c92\u6709\u60f3\u904e\uff0c\u4f7f\u7528\u8005\u6703\u8a66\u8457\u5728\u9019\u5169\u500b\u6b04\u4f4d\u4e2d\u8f38\u5165SQL\u8ff0\u53e5\u7684\u90e8\u4efd\u5167\u5bb9\uff0c\u4f8b\u5982\u8f38\u5165\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">userName = &quot;&#8217; OR &#8216;1&#8217;=&#8217;1&quot;; <br \/>\n            passWord = &quot;&#8217; OR &#8216;1&#8217;=&#8217;1&quot;;<\/font> <\/p>\n<p>            \u9019\u9ebc\u4e00\u4f86\uff0c\u6240\u5f97\u5230\u7684strSQL\u5c31\u6703\u8b8a\u6210\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">strSQL = &quot;SELECT * FROM users WHERE (name = &#8221; OR &#8216;1&#8217;=&#8217;1&#8242;) and (pw = &#8221; OR &#8216;1&#8217;=&#8217;1&#8242;);&quot;<\/font> <\/p>\n<p>            WHERE\u5b57\u53e5\u5f8c\u7684\u5167\u5bb9\u6c38\u9060\u70ba\u771f\uff0c\u6240\u4ee5\u9019\u4f4d\u4f7f\u7528\u8005\u5c31\u53ef\u4ee5\u767b\u5165\u7cfb\u7d71\u6210\u529f\u4e86\u2500\u2500\u5373\u4f7f\u4ed6\u5b8c\u5168\u4e0d\u77e5\u9053\u9019\u500b\u7cfb\u7d71\u4e0a\u6709\u4ec0\u9ebc\u4f7f\u7528\u8005\u5e33\u865f\u3001\u5176\u5bc6\u78bc\u53c8\u5206\u5225\u662f\u4ec0\u9ebc\u3002 <\/p>\n<p>            \u6709\u4e9b\u653b\u64ca\u751a\u81f3\u4e0d\u9019\u9ebc\u9ebb\u7169\uff0c\u76f4\u63a5\u5229\u7528SQL\u8ff0\u53e5\u63d0\u4f9b\u7684\u8a3b\u89e3\u7b26\u865f\uff08&#8211;\uff09\uff0c\u76f4\u63a5\u5ffd\u7565\u6389\u4e4b\u5f8c\u7684\u8ff0\u53e5\u5167\u5bb9\u3002\u50cf\u662f\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">strSQL = &quot;SELECT * FROM users WHERE (name = &#8216;Admin&#8217; &#8211;) and (pw = &#8221;);&quot;<\/font> <\/p>\n<p>            \u5018\u82e5\u4f60\u7684\u7cfb\u7d71\u4e2d\u6070\u597d\u6709\u4e00\u500b\u53ebAdmin\u7684\u4f7f\u7528\u8005\u5e33\u865f\u540d\u7a31\uff0c\u800c\u901a\u5e38\u9019\u7a2e\u5e33\u865f\u540d\u7a31\uff08\u6216\u50cf\u662froot\u3001administrator\u4e4b\u985e\u7684\uff09\u90fd\u610f\u8b02\u8457\u5b83\u662f\u8d85\u7d1a\u4f7f\u7528 \u8005\u6216\u7cfb\u7d71\u7ba1\u7406\u8005\uff0c\u90a3\u9ebc\u4e0d\u61f7\u597d\u610f\u7684\u4eba\uff0c\u900f\u904e\u4e0a\u8ff0\u7684\u65b9\u5f0f\uff0c\u4fbf\u53ef\u4ee5\u4ee5\u7cfb\u7d71\u7ba1\u7406\u8005\u7684\u8eab\u5206\u9032\u5165\uff0c\u901a\u5e38\u4e5f\u5c31\u5177\u5099\u4e86\u6240\u6709\u7684\u6b0a\u9650\uff1a\u4ed6\u53ef\u4ee5\u5efa\u7acb\u4f7f\u7528\u8005\u3001\u67e5\u770b\u5176\u4ed6\u4f7f\u7528\u8005\u5bc6\u78bc\u7b49 \u7b49\u3002\u60f3\u60f3\u770b\uff0c\u9019\u7a76\u7adf\u6709\u591a\u9ebc\u7684\u53ef\u6015\u3002 <\/p>\n<p>            \u9664\u4e86\u7565\u5165\u4e00\u4e9b\u6aa2\u67e5\u689d\u4ef6\u4e4b\u5916\uff0c\u6709\u5fc3\u4eba\u58eb\u53ef\u4ee5\u505a\u7684\u4e8b\u9084\u66f4\u591a\u3002\u6709\u4e00\u4e9b\u8cc7\u6599\u5eab\u7cfb\u7d71\u5141\u8a31\u4f60\u8f38\u5165\u6279\u6b21\u6027\u7684SQL\uff0c\u4f8b\u5982\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">select * from table1 select * from table2<\/font> <\/p>\n<p>            \u4fbf\u80fd\u5c0d\u5169\u500b\u8868\u683c\u9032\u884c\u67e5\u8a62\u3002\u4e00\u65e6\u4ed6\u8a66\u8457\u5728\u4f60\u7684SQL\u8ff0\u53e5\u4e2d\uff0c\u6ce8\u5165\u4e00\u4e9b\u50cf\u662f\uff1a <\/p>\n<p>            <font face=\"\u8d85\u4e16\u7d00\u65b0\u4e2d\u9ed1\">XXXX&lsquo; drop table TTTT &ndash;<\/font> <\/p>\n<p>            \u4e4b\u985e\u7684\u5167\u5bb9\uff0c\u90a3\u9ebc\uff0c\u4f60\u7684TTTT\u8868\u683c\u5c31\u6703\u88ab\u522a\u53bb\u3002\u82e5TTTT\u6070\u597d\u662f\u4e00\u500b\u7cfb\u7d71\u904b\u4f5c\u4e0d\u53ef\u6216\u7f3a\u7684\u8868\u683c\u6642\uff0c\u7cfb\u7d71\u81ea\u7136\u6703\u56e0\u6b64\u800c\u640d\u6bc0\u3001\u7121\u6cd5\u518d\u904b\u4f5c\u4e0b\u53bb\u3002 <\/p>\n<p>            <strong>\u6709\u5fc3\u4eba\u58eb\u6703\u5229\u7528SQL\u8ff0\u53e5\u7684\u758f\u65bc\u6aa2\u67e5\uff0c\u800c\u70ba\u6240\u6b32\u70ba<\/strong> <br \/>\n            \u80fd\u5920\u5728\u6253\u7b97\u5f04\u4e9b\u624b\u8173\u7684\u6a5f\u5668\u4e0a\u60f3\u8fa6\u6cd5\u57f7\u884c\u4e00\u4e9bSQL\u8ff0\u53e5\uff0c\u5c0d\u6709\u5fc3\u4eba\u58eb\u4f86\u8aaa\uff0c\u662f\u4e00\u4ef6\u5f88\u68d2\u7684\u4e8b\u60c5\u3002\u900f\u904e\u57f7\u884c\u4e00\u4e9bSQL\u8ff0\u53e5\uff0c\u6709\u5fc3\u4eba\u58eb\u6709\u6a5f\u6703\u9032\u884c\u8a31\u591a\u52d5\u4f5c\u3002\u4f8b\u5982\u4ed6 \u53ef\u4ee5\u5f97\u5230\u8cc7\u6599\u5eab\u4e2d\u7684\u4e00\u4e9b\u91cd\u8981\u8cc7\u6599\uff0c\u4f8b\u5982\u5e33\u865f\u3001\u5bc6\u78bc\u3001\u59d3\u540d\u3001\u5730\u5740\u3001\u4ea4\u6613\u8cc7\u6599\u7b49\u7b49\u3002\u5982\u679c\u4ed6\u662f\u8a50\u9a19\u96c6\u5718\uff0c\u53d6\u5f97\u9019\u4e9b\u500b\u4eba\u8cc7\u6599\u5f8c\uff0c\u4fbf\u53ef\u4ee5\u7528\u4f86\u505a\u70ba\u8a50\u9a19\u6642\u53d6\u5f97\u5c0d\u65b9\u4fe1\u4efb \u7684\u57fa\u790e\u3002 <\/p>\n<p>            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