{"id":159,"date":"2012-08-23T14:16:17","date_gmt":"2012-08-23T06:16:17","guid":{"rendered":"http:\/\/www.yeetrack.com\/?p=25"},"modified":"2013-04-20T17:35:10","modified_gmt":"2013-04-20T09:35:10","slug":"sql%e6%b3%a8%e5%85%a5%e8%a7%a3%e6%9e%90%ef%bc%88%e4%ba%8c%ef%bc%89%e6%89%a7%e8%a1%8c%e6%b3%a8%e5%85%a5","status":"publish","type":"post","link":"https:\/\/www.yeetrack.com\/?p=159","title":{"rendered":"sql\u6ce8\u5165\u89e3\u6790\uff08\u4e8c\uff09\u6267\u884c\u6ce8\u5165"},"content":{"rendered":"

sql\u6ce8\u5165\u89e3\u6790\uff08\u4e00\uff09https:\/\/www.yeetrack.com\/wordpress\/?p=20<\/a>
\u63a2\u67e5\u7a0b\u5e8f\u662f\u5426\u5b58\u5728sql\u6ce8\u5165\u6f0f\u6d1e\uff1a
\u5229\u7528\u5b57\u7b26\u4e32\u6570\u636e\uff1a
1\u3001\u63d0\u4ea4\u4e00\u4e2a\u5355\u5f15\u53f7\uff0c\u89c2\u5bdf\u662f\u5426\u5904\u7406\u51fa\u9519\u3002
2\u3001\u63d0\u4ea4\u4e24\u4e2a\u5355\u5f15\u53f7\uff0c\u4e24\u4e2a\u5355\u5f15\u53f7\u5728\u6570\u636e\u5e93\u4e2d\u4f1a\u88ab\u8f6c\u4e49\uff0c\u5f53\u505a\u5b57\u7b26\u5355\u5f15\u53f7\u5904\u7406\uff0c\u5982\u679c\u9519\u8bef\u6d88\u606f\uff0c\u5219\u8bf4\u660e\u7a0b\u5e8f\u53ef\u80fd\u5b58\u5728sql\u6ce8\u5165\u6f0f\u6d1e\u3002
3\u3001 \u63d0\u4ea4\u826f\u6027\u6570\u636e\uff0coracle\u4e2d'| |'keyword\uff0cms-sql\u4e2d'+'keyword\uff0cmysql\u4e2d' 'keyword\uff0c\u4e0a\u9762\u8fd9\u4e09\u79cd\u8f93\u5165\u90fd\u7b49\u540c\u4e8ekeyword\u5b57\u7b26\u4e32\uff0c\u6839\u636e\u6570\u636e\u5e93\u7c7b\u578b\u9009\u62e9\u8f93\u5165\uff0c\u67e5\u770b\u548c\u8f93\u5165keyword\u7ed3\u679c\u662f\u5426\u76f8\u540c\u3002
\u5229\u7528\u6570\u5b57\u6570\u636e\uff1a
1\u3001 \u5047\u5982\u539f\u59cbURL\u4e3ahttps:\/\/www.yeetrack.com\/select.jsp?id=4
\u53ef\u4ee5\u628a4\u6539\u6210(1+3)\uff0c\u67e5\u770b\u8f93\u51fa\u662f\u5426\u4e00\u6837\u3002\u5982\u679c\u4e00\u6837\uff0c\u8bf4\u660e\u53ef\u80fd\u5b58\u5728sql\u6ce8\u5165\u6f0f\u6d1e\u3002
2\u3001 \u5982\u679c\u4e0a\u9762\u9a8c\u8bc1\u8f93\u51fa\u4e00\u6837\uff0c\u53ef\u4ee5\u5229\u7528\u590d\u6742\u4e9b\u7684sql\u8bed\u53e5\uff0c\u8fdb\u4e00\u6b65\u9a8c\u8bc1\u3002ASCII\u547d\u4ee4\u8fd4\u56de\u6307\u5b9a\u5b57\u7b26\u7684ASCII\u7801\uff0c\u5982ASCII('A')\u7b49\u540c\u4e8e65\uff0cA\u7684ASCII\u7801\u4e3a65\u3002\u4e0a\u9762\u76844\u5c31\u53ef\u4ee5\u7528(ASCII('A')-61)\u66ff\u6362\u3002
3\u3001 \u5982\u679c\u5355\u5f15\u53f7\u88ab\u8fc7\u6ee4\u4e0a\u9762\u7684URL\u5c31\u65e0\u6548\u4e86\uff0c\u4f46\u662f\u53ef\u4ee5\u5229\u7528\u6570\u5b57\uff0c\u5982\u6570\u5b571\u7684ascii\u7801\u4e3a49\uff0c \u53ef\u4ee5\u4fee\u6539\u4e3a(ASCII(1)-45)\u3002
PS\uff1a\u5982\u679c\u662f\u76f4\u63a5\u5728URL\u4e2d\u9644\u5e26\u6709\u6548\u8f7d\u8377\uff0c\u5c31\u5fc5\u987b\u5bf9\u4e0a\u9762\u8fd9\u4e9b\u5b57\u7b26URL\u7f16\u7801\uff0c&:%26, =:%3d,  \u67e5\u8be2\u5b57\u7b26\u4e32\u4e2d\u4e0d\u5141\u8bb8\u6709\u7a7a\u683c\uff0c\u7a7a\u683c\u8981\u7f16\u7801\u4e3a+\u6216\u8005%20\uff1b\u7531\u4e8e\u7a7a\u683c\u7f16\u7801\u4e3a+\uff0c\u6240\u4ee5\u60f3\u4f7f\u7528+\uff0c\u5c31\u8981\u7f16\u7801\u6210%2b\uff0c\u5206\u53f7\u7f16\u7801\u6210%3b\u3002 \u59821+1\uff0c\u7ecf\u8fc7URL\u7f16\u7801\u5c31\u6210\u4e3a1%2b1\u3002\u5728\u7ebf\u7f16\u7801\u89e3\u7801\u5de5\u5177\uff1ahttp:\/\/www.baidu.com\/baidu?word=url%B1%E0%C2%EB&sg=123<\/p>\n

\u5229\u7528\u4e0d\u540c\u7684\u8bed\u53e5\u6ce8\u5165\uff1a
1.  select\u662f\u6700\u5e38\u89c1\u7684\u53ef\u5229\u7528\u7684\u8bed\u53e5\uff0c\u5982\u4e0a\u9762\u7684\u767b\u9646\u7ed5\u8fc7\u5bc6\u7801\uff0c\u5c31\u662fselect\u8bed\u53e5\u3002select\u8bed\u53e5\u4e00\u822c\u662f\u5229\u7528where\u5b50\u53e5\uff0c\u5229\u7528\u6ce8\u91ca\u5b57\u7b26\u6ce8\u91ca\u6389\u3002
2. insert\u8bed\u53e5\uff0c\u4e5f\u53ef\u4ee5\u6210\u4e3asql\u6ce8\u5165\u7684\u5bf9\u8c61\u3002\u5047\u8bbe\u4e00\u4e2aweb\u7a0b\u5e8f\u7528\u6237\u6ce8\u518c\u7684\u8bed\u53e5\u662f\u8fd9\u6837\u5199\u7684 insert into user (username, password, Id, privs) value('youthflies', 'passwd', 1234, 2), \u5982\u679c\u5b58\u5728sql\u6ce8\u5165\u6f0f\u6d1e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u4efb\u610f\u6307\u5b9a\u81ea\u5df1\u7684Id\u548cprivs\u4e86\uff0c\u524d\u63d0\u662f\u6211\u4eec\u6784\u9020\u51fa\u6765\u7684\u8bed\u53e5\u6ca1\u6709\u8bed\u6cd5\u9519\u8bef\uff0c\u5373\u5176\u4ed6\u5b57\u6bb5\u7684\u7684\u4e2a\u6570\u548c\u7c7b\u578b\u5fc5\u987b\u6b63\u786e\u3002\u6211\u4eec\u5728\u6ce8\u518c\u4e00\u4e2ausername\u4e3a youthflies', 'passwd', 11111, 1)-- \u7684\u7528\u6237\uff0c\u8fd9\u6837\u6211\u4eec\u5c31\u6210\u529f\u6ce8\u518c\u4e86\u4e00\u4e2aId\u4e3a11111\uff0c\u6743\u9650\u4e3a1\u7684\u7528\u6237\u3002\u5f53\u6211\u4eec\u65e0\u6cd5\u5f97\u77e5\u5176\u4ed6\u5b57\u6bb5\u7684\u4e2a\u6570\u548c\u7c7b\u578b\u65f6\uff0c\u53ef\u4ee5\u8fd9\u6837\u8bd5\uff0cusername\u5206\u522b\u8f93\u5165 youthflies',1)-- ;    youthflies', 1,1)-- ;    youthflies',1,1,1)-- ;    youthflies', 1,1,1,1)-- \u3002\u5982\u679c1\u4e0d\u884c\uff0c\u6362\u505a2000\u8bd5\u8bd5\u3002\u5f88\u591a\u6570\u636e\u5e93\u90fd\u5c06\u6570\u5b57\u9690\u5f0f\u5730\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\uff0c\u4f1a\u5c062000\u9690\u5f0f\u5730\u8f6c\u5316\u4e3a\u57fa\u4e8e\u6570\u636e\u7684\u6570\u636e\u7c7b\u578b\u3002
3\u3001 update\u8bed\u53e5\u3002update\u8bed\u53e5\u4e0einsert\u8bed\u53e5\u7c7b\u4f3c\uff0c\u53ea\u4e0d\u8fc7\u591a\u4e86\u4e00\u4e2awhere\u8bed\u53e5\u8fdb\u884c\u8303\u56f4\u7684\u5224\u65ad\u3002\u52a0\u5165\u7528\u6237\u4fee\u6539\u5bc6\u7801\u7684\u529f\u80fd\uff0c\u5728\u540e\u53f0\u7684sql\u4f53\u73b0\u4e3a update users set password='newpasswd' where username='youthflies' and password='passwd', \u4fee\u6539\u5bc6\u7801\u8981\u5148\u5224\u65ad\u4ee5\u524d\u7684\u5bc6\u7801\u662f\u5426\u6b63\u786e\u3002\u6211\u4eec\u5728username\u91cc\u8f93\u5165 admin-- \u5c31\u53ef\u4ee5\u7ed5\u8fc7\u5bc6\u7801\u9a8c\u8bc1\uff0c\u4fee\u6539admin\u7684\u5bc6\u7801\uff0c\u6216\u8005\u66f4\u5177\u7834\u574f\u6027\u7684\u8f93\u5165 admin' or 1=1-- \uff0c\u8fd9\u6837\u53ef\u4ee5\u4fee\u6539\u5168\u90e8\u7528\u6237\u7684\u5bc6\u7801\uff0c\u4e00\u65e6\u53d1\u751f\u5c31\u4f1a\u9020\u6210\u4e25\u91cd\u7834\u574f\u3002
4. delete\u8bed\u53e5\u3002\u4e0eupdate\u8bed\u53e5\u7c7b\u4f3c\uff0c\u4e0d\u518d\u8d58\u8ff0\u3002
5.  union\u64cd\u4f5c\u7b26\u3002sql\u4f7f\u7528union\u64cd\u4f5c\u7b26\u5c06\u4e24\u4e2a\u6216\u51e0\u4e2a\u67e5\u8be2\u7ed3\u679c\u7ec4\u5408\u5230\u4e00\u4e2a\u7ed3\u679c\u4e2d\u3002\u5982\u679c\u4e00\u4e2aweb\u7a0b\u5e8f\u7684select\u8bed\u53e5\u4ea7\u751fsql\u6ce8\u5165\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528union\u64cd\u4f5c\u7b26\u6267\u884c\u53e6\u5916\u4e00\u6b21\u72ec\u7acb\u7684\u67e5\u8be2\u5e76\u5c06\u7ed3\u679c\u5408\u5e76\u5728\u7b2c\u4e00\u6b21\u67e5\u8be2\u7ed3\u679c\u4e2d\u8f93\u5165\u3002\u4f8b\u5982\uff1a\u6709\u4e2aselect \u8bed\u53e5\uff0cselect username, age, email from user where username='youthflies' \uff0c\u6211\u4eecusername\u8f93\u5165 youthflies' union select username ,age,password from user where username='youthflies'-- ,\u8fd9\u6837\u6700\u7ec8\u7684sql\u8bed\u53e5\u53d8\u6210select username,age,email from user where username='youthflies' union select username, age, password from user where username='youthflies'--' ,\u8fd9\u6837\u6211\u4eec\u624b\u52a8\u6784\u9020\u4e86\u4e00\u6b21\u67e5\u8be2\uff0c\u8fd4\u56de\u4e86\u7528\u6237\u5bc6\u7801\u3002
\u4f46\u662f\u5b9e\u65bd\u8fd9\u6837\u7684\u6ce8\u5165\u9700\u8981\u4e24\u4e2a\u6761\u4ef6\uff0c1 \u6211\u4eec\u5fc5\u987b\u4fdd\u8bc1\u4e24\u6b21\u67e5\u8be2\u7684\u7ed3\u679c\u53ef\u4ee5\u6b63\u5e38\u878d\u5408\uff0c\u4e2a\u6570\u548c\u7c7b\u578b\u5fc5\u987b\u517c\u5bb9\uff1b2 \u6211\u4eec\u5fc5\u987b\u77e5\u9053\u6570\u636e\u5e93\u7684\u8868\u540d\u548c\u6709\u5173\u5217\u540d\u3002\u5982\u679c\u4ee5\u4e0a\u4e24\u70b9\u4e0d\u6ee1\u8db3\uff0c\u6211\u4eec\u6784\u9020\u7684union\u8bed\u53e5\u4ea7\u751f\u7684\u7ed3\u679c\u53ef\u80fd\u6709\u8bef\uff0c\u800c\u9519\u8bef\u6709\u53ef\u80fd\u88ab\u540e\u53f0\u53cb\u597d\u5904\u7406\uff0c\u65e0\u6cd5\u8fdb\u4e00\u6b65\u83b7\u53d6\u4fe1\u606f\u3002 \u4f46\u662f\u6570\u636e\u5e93\u4f1a\u9ed8\u8ba4\u5c06\u6570\u5b57\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32\uff0c\u4e5f\u4f1a\u5c06NULL\u8f6c\u5316\u4e3a\u4efb\u610f\u7c7b\u578b\u7684\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u8fd9\u4e00\u70b9\u3002\u6240\u4ee5\u5982\u679c\u4e0d\u77e5\u9053\u67d0\u4e00\u5217\u7684\u6570\u636e\u7c7b\u578b\uff0c\u6211\u4eec\u53ef\u4ee5select NULL\u3002
\u6211\u4eec\u53ef\u4ee5\u5229\u7528NULL\u6765\u63a2\u6d4b\u7ed3\u679c\u7684\u5217\u6570\uff0c\u4f9d\u6b21\u8f93\u5165 youthflies' union select NULL--  ;youthflies' union select NULL, NULL-- ;youthflies' union select NULL,NULL,NULL-- \u5f53\u8bed\u53e5\u6b63\u5e38\u6267\u884c\u4e86\uff0c\u5c31\u8bf4\u660e\u5217\u6570\u6b63\u786e\u4e86\uff1b\u4e5f\u53ef\u4ee5\u5229\u7528order by\u5b50\u53e5\u6765\u5224\u65ad\u5217\u6570\uff0c\u4f9d\u6b21\u8f93\u5165 youthflies' order by 1-- ; youthflies' order by 2--; youthflies' order by 3--\uff08order by 3\u6307\u6309\u7b2c\u4e09\u4e2a\u53c2\u6570\u6392\u5e8f\uff09 \u76f4\u5230\u53d1\u751f\u9519\u8bef\uff0c\u4e5f\u53ef\u4ee5\u5224\u65ad\u51fa\u5217\u6570\u3002
\u786e\u5b9a\u4e86\u5217\u6570\uff0c\u4e0b\u4e00\u6b65\u5c31\u662f\u786e\u5b9a\u7c7b\u578b\u4e86\u3002\u5047\u8bbe\u5217\u6570\u4e3a3\u4f9d\u6b21\u8f93\u5165youthflies' union select 'a', NULL\uff0cNULL-- \uff0cyouthflies' union select NULL, 'a', NULL-- ;youthflies' union select NULL,NULL ,'a'-- \uff0c\u54ea\u4e00\u884c\u6267\u884c\u6b63\u786e\uff0c\u5c31\u8bf4\u660e\u90a3\u4e00\u5217\u7684\u7c7b\u578b\u662f\u5b57\u7b26\u4e32\u3002PS\uff1aoracle\u6570\u636e\u5e93\u8981\u6c42\u6bcf\u4e2aselect\u8bed\u53e5\u5fc5\u987b\u6709where\u5b50\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u518d\u5168\u5c40\u8868\u4e2dselect\uff0cyouthflies' union select NULL from DUAL-- ,DUAL\u8868\u793a\u6570\u636e\u5e93\u4e2d\u5168\u90e8\u7684\u8868\u3002
\u786e\u5b9a\u4e86\u5217\u6570\u548c\u7c7b\u578b\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u63d0\u53d6\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u4e86\uff0c\u4f46\u662f\u5fc5\u987b\u77e5\u9053\u8868\u4e2d\u7684\u5217\u540d\u3002\u4e5f\u53ef\u4ee5\u63d0\u53d6\u6570\u636e\u5e93\u7684\u7248\u672c\uff0c\u6839\u636e\u8be5\u7248\u672c\u7684\u5df2\u77e5\u6f0f\u6d1e\u8fdb\u884c\u653b\u51fb\u3002ms-sql\u6570\u636e\u5e93\uff1ayouthflies' union select @@version,NULL,NULL-- ;oracle\u6570\u636e\u5e93\uff1a youthflies' union select banner,NULL,NULL-- \u3002
\u672c\u6587\u662f\u7531youthflies<\/a>\u53d1\u8868\u5728\u6613\u8e2a\u7f51(yeetrack.com)<\/a>\u4e0a\u7684\u539f\u521b\u6587\u7ae0\uff0c\u539f\u6587\u5730\u5740\u4e3a\uff1ahttps:\/\/www.yeetrack.com\/?p=25<\/a><\/p>\n

sql\u6ce8\u5165\u89e3\u6790\uff08\u4e00\uff09\u57fa\u672c\u8bed\u6cd5<\/a><\/h1>\n

 <\/p>\n

sql\u6ce8\u5165\u89e3\u6790\uff08\u4e8c\uff09\u6267\u884c\u6ce8\u5165<\/a><\/h1>\n

 <\/p>\n

sql\u6ce8\u5165\u89e3\u6790\uff08\u4e09\uff09\u6570\u636e\u5e93\u7c7b\u578b<\/a><\/h1>\n

 <\/p>\n

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