\u7b2c\u4e00\u6b65\u80af\u5b9a\u662f\u6253\u4e0aSQLSERVER\u6700\u65b0\u7684\u5b89\u5168\u8865\u4e01\uff0c\u73b0\u5728\u8865\u4e01\u5df2\u7ecf\u51fa\u5230\u4e86SP4\u3002\u5982\u679c\u8fd9\u4e00\u6b65\u90fd\u6ca1\u6709\u505a\u597d\uff0c\u90a3\u6211\u4eec\u4e5f\u6ca1\u6709\u7ee7\u7eed\u4e0b\u53bb\u7684\u5fc5\u8981\u4e86\u3002<\/p>\n
\u3000\u3000\u7b2c\u4e8c\u6b65\u662f\u4fee\u6539\u9ed8\u8ba4\u76841433\u7aef\u53e3\uff0c\u5e76\u4e14\u5c06SQL SERVER\u9690\u85cf\u3002\u8fd9\u6837\u80fd\u7981\u6b62\u5bf9\u8bd5\u56fe\u679a\u4e3e\u7f51\u7edc\u4e0a\u73b0\u6709\u7684 SQL Server\u5ba2\u6237\u7aef\u6240\u53d1\u51fa\u7684\u5e7f\u64ad\u4f5c\u51fa\u54cd\u5e94\u3002\u53e6\u5916\uff0c\u8fd8\u9700\u8981\u5728TCP\/IP\u7b5b\u9009\u4e2d\u5c061433\u7aef\u53e3\u5c4f\u853d\u6389\uff0c\u5c3d\u53ef\u80fd\u7684\u9690\u85cf\u4f60\u7684SQLSERVER\u6570\u636e\u5e93\u3002\u8fd9\u6837\u5b50\u4e00\u4f46\u8ba9\u653b\u51fb\u521b\u5efa\u4e86SQLSERVER\u7684\u8d26\u53f7\uff0c\u4e5f\u4e0d\u80fd\u9a6c\u4e0a\u4f7f\u7528\u67e5\u8be2\u5206\u6790\u5668\u8fdc\u7a0b\u767b\u9646\u6765\u8fdb\u884c\u4e0b\u4e00\u6b65\u7684\u653b\u51fb\u3002\u5355\u4eceASP\uff0cPHP\u7b49\u9875\u9762\u6784\u9020\u6076\u610f\u8bed\u53e5\u7684\u8bdd\uff0c\u8fd8\u6709\u9700\u8981\u67e5\u770b\u8fd4\u56de\u503c\u7684\u95ee\u9898\uff0c\u603b\u6bd4\u4e0d\u4e0a\u76f4\u63a5\u67e5\u8be2\u5206\u6790\u5668\u6765\u5f97\u5229\u843d\u3002\u6240\u4ee5\u6211\u4eec\u9996\u5148\u8981\u505a\u5230\u5373\u4f7f\u8ba9\u522b\u4eba\u6ce8\u5165\u4e86\uff0c\u4e5f\u4e0d\u80fd\u8ba9\u653b\u51fb\u8005\u4e0b\u4e00\u6b65\u505a\u5f97\u987a\u5f53\u3002\u4fee\u6539\u65b9\u6cd5\uff1a\u4f01\u4e1a\u7ba1\u7406\u5668–> \u4f60\u7684\u6570\u636e\u5e93\u7ec4 –> \u5c5e\u6027 –> \u5e38\u89c4 –> \u7f51\u7edc\u914d\u7f6e –> TCP\/IP –> \u5c5e\u6027\uff0c\u5728\u8fd9\u513f\u5c06\u4f60\u7684\u9ed8\u8ba4\u7aef\u53e3\u8fdb\u884c\u4fee\u6539\uff0c\u548cSQL SERVER\u7684\u9690\u85cf\u3002<\/p>\n
\u3000\u3000\u7b2c\u4e09\u6b65\u662f\u5f88\u91cd\u8981\u7684\u4e00\u6b65\uff0cSQL INJECTION\u5f80\u5f80\u5728WEBCODE\u4e2d\u4ea7\u751f\u3002\u800c\u505a\u4e3a\u7cfb\u7edf\u7ba1\u7406\u5458\u6216\u8005\u6570\u636e\u5e93\u7ba1\u7406\u5458\uff0c\u603b\u4e0d\u80fd\u5e38\u5e38\u7684\u53bb\u770b\u6bcf\u4e00\u6bb5\u4ee3\u7801\u3002\u5373\u4f7f\u5e38\u5e38\u770b\u4ee3\u7801\uff0c\u4e5f\u4e0d\u80fd\u4fdd\u8bc1\u6211\u4eec\u5728\u4e0a\u9762\u7684\u758f\u5ffd\u3002\u90a3\u600e\u4e48\u529e\uff1f\u6211\u4eec\u5c31\u8981\u4ece\u6570\u636e\u5e93\u89d2\u8272\u7740\u624b\uff0c\u8ba9\u6570\u636e\u5e93\u7528\u6237\u7684\u6743\u9650\u5212\u5206\u5230\u6700\u4f4e\u70b9\u3002SQLSERVER\u7684\u9ed8\u8ba4\u6743\u9650\u8ba9\u4eba\u771f\u7684\u5f88\u5934\u75bc\uff0c\u6743\u9650\u5927\u5f97\u975e\u5e38\u7684\u9ad8\uff0c\u6743\u9650\u5c0f\u7684\u53c8\u4ec0\u4e48\u90fd\u505a\u4e0d\u4e86\uff0cSYSADMIN\u548cdb_owner\u771f\u662f\u8ba9\u4eba\u53c8\u7231\u53c8\u6068\u3002\u653b\u51fb\u8005\u4e00\u4f46\u786e\u8ba4\u4e86\u7f51\u7ad9\u5b58\u5728SQLINJECTION\u6f0f\u6d1e\uff0c\u80af\u5b9a\u6709\u4e00\u6b65\u64cd\u4f5c\u6b65\u9aa4\u5c31\u662f\u6d4b\u8bd5\u7f51\u7ad9\u7684SQL SERVER\u4f7f\u7528\u8005\u5177\u6709\u591a\u5927\u7684\u6743\u9650\u3002\u4e00\u822c\u90fd\u4f1a\u501f\u52a9selectIS_SRVROLEMEMBER(\u2019sysadmin\u2019)\uff0c\u6216\u8005select IS_MEMBER(\u2019db_owner\u2019)\uff0c\u518d\u6216\u8005\u7528user= 0(\u8ba9\u5b57\u7b26\u548c\u6570\u5b57\u8fdb\u884c\u6bd4\u8f83\uff0cSQLSERVER\u5c31\u4f1a\u63d0\u793a\u4e86\u9519\u8bef\u4fe1\u606f\uff0c\u4ece\u8be5\u4fe1\u606f\u4e2d\u5373\u53ef\u77e5\u9053\u4e00\u4e9b\u654f\u611f\u4fe1\u606f)\u7b49\u8bed\u53e5\u8fdb\u884c\u6d4b\u8bd5\u3002\u5728\u5f53\u524d\uff0c\u5982\u679c\u7f51\u7ad9\u7684\u6570\u636e\u5e93\u4f7f\u7528\u8005\u7528\u7684\u662fSA\u6743\u9650\uff0c\u518d\u52a0\u4e0a\u786e\u8ba4\u4e86WEB\u6240\u5904\u5728\u7684\u7edd\u5bf9\u8def\u5f84\uff0c\u90a3\u4e48\u5c31\u5ba3\u544a\u4e86\u4f60\u7684\u7f51\u7ad9\u7684OVER\u3002db_owner\u6743\u9650\u4e5f\u4e00\u6837\uff0c\u5982\u679c\u786e\u8ba4\u4e86\u7edd\u5bf9\u8def\u5f84\uff0c\u90a3\u4e48\u670950\uff05\u7684\u673a\u4f1a\u80fd\u7ed9\u4f60\u7684\u673a\u5668\u4e2d\u4e0aWEB\u65b9\u5f0f\u7684\u6728\u9a6c\uff0c\u5982\u6d77\u9633\u7b49\u3002\u6240\u4ee5\u8fd9\u513f\u6211\u4eec\u786e\u8ba4\u4e86\u4e00\u70b9\uff0c\u6211\u4eec\u5fc5\u987b\u8981\u521b\u5efa\u81ea\u5df2\u7684\u6743\u9650\uff0c\u8ba9\u653b\u51fb\u8005\u627e\u4e0d\u7740\u4e0b\u5634\u7684\u5730\u65b9\u3002\u5728\u8fd9\u513f\u5f15\u7528\u4e00\u4e2aSQLSERVER\u8054\u673a\u5e2e\u52a9\u4e2d\u7684\u4f8b\u5b50\uff1a\u521b\u5efa SQL Server \u6570\u636e\u5e93\u89d2\u8272\u7684\u65b9\u6cd5\uff08\u4f01\u4e1a\u7ba1\u7406\u5668\uff09
\u521b\u5efa SQL Server \u6570\u636e\u5e93\u89d2\u8272
1. \u5c55\u5f00\u670d\u52a1\u5668\u7ec4\uff0c\u7136\u540e\u5c55\u5f00\u670d\u52a1\u5668\u3002
2. \u5c55\u5f00”\u6570\u636e\u5e93”\u6587\u4ef6\u5939\uff0c\u7136\u540e\u5c55\u5f00\u8981\u5728\u5176\u4e2d\u521b\u5efa\u89d2\u8272\u7684\u6570\u636e\u5e93\u3002
3. \u53f3\u51fb”\u89d2\u8272”\uff0c\u7136\u540e\u5355\u51fb”\u65b0\u5efa\u6570\u636e\u5e93\u89d2\u8272”\u547d\u4ee4\u3002
4. \u5728”\u540d\u79f0”\u6846\u4e2d\u8f93\u5165\u65b0\u89d2\u8272\u7684\u540d\u79f0\u3002
5. \u5355\u51fb”\u6dfb\u52a0”\u5c06\u6210\u5458\u6dfb\u52a0\u5230”\u6807\u51c6\u89d2\u8272”\u5217\u8868\u4e2d\uff0c\u7136\u540e\u5355\u51fb\u8981\u6dfb\u52a0\u7684\u4e00\u4e2a\u6216\u591a\u4e2a\u7528\u6237\u3002\uff08\u53ef\u9009\uff09\u53ea\u6709\u9009\u5b9a\u6570\u636e\u5e93\u4e2d\u7684\u7528\u6237\u624d\u80fd\u88ab\u6dfb\u52a0\u5230\u89d2\u8272\u4e2d\u3002\u5bf9\u8c61\u6743\u9650\u5904\u7406\u6570\u636e\u6216\u6267\u884c\u8fc7\u7a0b\u65f6\u9700\u8981\u79f0\u4e3a\u5bf9\u8c61\u6743\u9650\u7684\u6743\u9650\u7c7b\u522b\uff1a
\u00b7 select\u3001insert\u3001update \u548c delete \u8bed\u53e5\u6743\u9650\uff0c\u5b83\u4eec\u53ef\u4ee5\u5e94\u7528\u5230\u6574\u4e2a\u8868\u6216\u89c6\u56fe\u4e2d\u3002
\u00b7 select \u548c update \u8bed\u53e5\u6743\u9650\uff0c\u5b83\u4eec\u53ef\u4ee5\u6709\u9009\u62e9\u6027\u5730\u5e94\u7528\u5230\u8868\u6216\u89c6\u56fe\u4e2d\u7684\u5355\u4e2a\u5217\u4e0a\u3002
\u00b7 select \u6743\u9650\uff0c\u5b83\u4eec\u53ef\u4ee5\u5e94\u7528\u5230\u7528\u6237\u5b9a\u4e49\u51fd\u6570\u3002
\u00b7 insert \u548c delete \u8bed\u53e5\u6743\u9650\uff0c\u5b83\u4eec\u4f1a\u5f71\u54cd\u6574\u884c\uff0c\u56e0\u6b64\u53ea\u53ef\u4ee5\u5e94\u7528\u5230\u8868\u6216\u89c6\u56fe\u4e2d\uff0c\u800c\u4e0d\u80fd\u5e94\u7528\u5230\u5355\u4e2a\u5217\u4e0a\u3002
\u00b7 EXECUTE \u8bed\u53e5\u6743\u9650\uff0c\u5b83\u4eec\u53ef\u4ee5\u5f71\u54cd\u5b58\u50a8\u8fc7\u7a0b\u548c\u51fd\u6570\u3002\u8bed\u53e5\u6743\u9650
\u521b\u5efa\u6570\u636e\u5e93\u6216\u6570\u636e\u5e93\u4e2d\u7684\u9879\uff08\u5982\u8868\u6216\u5b58\u50a8\u8fc7\u7a0b\uff09\u6240\u6d89\u53ca\u7684\u6d3b\u52a8\u8981\u6c42\u53e6\u4e00\u7c7b\u79f0\u4e3a\u8bed\u53e5\u6743\u9650\u7684\u6743\u9650\u3002\u4f8b\u5982\uff0c\u5982\u679c\u7528\u6237\u5fc5\u987b\u80fd\u591f\u5728\u6570\u636e\u5e93\u4e2d\u521b\u5efa\u8868\uff0c\u5219\u5e94\u8be5\u5411\u8be5\u7528\u6237\u6388\u4e88create TABLE \u8bed\u53e5\u6743\u9650\u3002\u8bed\u53e5\u6743\u9650\uff08\u5982 create DATABASE\uff09\u9002\u7528\u4e8e\u8bed\u53e5\u81ea\u8eab\uff0c\u800c\u4e0d\u9002\u7528\u4e8e\u6570\u636e\u5e93\u4e2d\u5b9a\u4e49\u7684\u7279\u5b9a\u5bf9\u8c61\u3002
\u8bed\u53e5\u6743\u9650\u6709\uff1a
\u00b7 BACKUP DATABASE
\u00b7 BACKUP LOG
\u00b7 create DATABASE
\u00b7 create DEFAULT
\u00b7 create FUNCTION
\u00b7 create PROCEDURE
\u00b7 create RULE
\u00b7 create TABLE
\u00b7 create VIEW\u6697\u793a\u6027\u6743\u9650
\u6697\u793a\u6027\u6743\u9650\u63a7\u5236\u90a3\u4e9b\u53ea\u80fd\u7531\u9884\u5b9a\u4e49\u7cfb\u7edf\u89d2\u8272\u7684\u6210\u5458\u6216\u6570\u636e\u5e93\u5bf9\u8c61\u6240\u6709\u8005\u6267\u884c\u7684\u6d3b\u52a8\u3002\u4f8b\u5982\uff0csysadmin \u56fa\u5b9a\u670d\u52a1\u5668\u89d2\u8272\u6210\u5458\u81ea\u52a8\u7ee7\u627f\u5728 SQLServer \u5b89\u88c5\u4e2d\u8fdb\u884c\u64cd\u4f5c\u6216\u67e5\u770b\u7684\u5168\u90e8\u6743\u9650\u3002
\u6570\u636e\u5e93\u5bf9\u8c61\u6240\u6709\u8005\u8fd8\u6709\u6697\u793a\u6027\u6743\u9650\uff0c\u53ef\u4ee5\u5bf9\u6240\u62e5\u6709\u7684\u5bf9\u8c61\u6267\u884c\u4e00\u5207\u6d3b\u52a8\u3002\u4f8b\u5982\uff0c\u62e5\u6709\u8868\u7684\u7528\u6237\u53ef\u4ee5\u67e5\u770b\u3001\u6dfb\u52a0\u6216\u5220\u9664\u6570\u636e\uff0c\u66f4\u6539\u8868\u5b9a\u4e49\uff0c\u6216\u63a7\u5236\u5141\u8bb8\u5176\u4ed6\u7528\u6237\u5bf9\u8868\u8fdb\u884c\u64cd\u4f5c\u7684\u6743\u9650\u3002db_owner \u5728\u6570\u636e\u5e93\u4e2d\u6709\u5168\u90e8\u6743\u9650\u3002
db_accessadmin \u53ef\u4ee5\u6dfb\u52a0\u6216\u5220\u9664\u7528\u6237 ID\u3002
db_securityadmin \u53ef\u4ee5\u7ba1\u7406\u5168\u90e8\u6743\u9650\u3001\u5bf9\u8c61\u6240\u6709\u6743\u3001\u89d2\u8272\u548c\u89d2\u8272\u6210\u5458\u8d44\u683c\u3002
db_ddladmin \u53ef\u4ee5\u53d1\u51fa ALL DDL\uff0c\u4f46\u4e0d\u80fd\u53d1\u51fa GRANT\u3001REVOKE \u6216 DENY \u8bed\u53e5\u3002
db_backupoperator \u53ef\u4ee5\u53d1\u51fa DBCC\u3001CHECKPOINT \u548c BACKUP \u8bed\u53e5\u3002
db_datareader \u53ef\u4ee5\u9009\u62e9\u6570\u636e\u5e93\u5185\u4efb\u4f55\u7528\u6237\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002
db_datawriter \u53ef\u4ee5\u66f4\u6539\u6570\u636e\u5e93\u5185\u4efb\u4f55\u7528\u6237\u8868\u4e2d\u7684\u6240\u6709\u6570\u636e\u3002
db_denydatareader \u4e0d\u80fd\u9009\u62e9\u6570\u636e\u5e93\u5185\u4efb\u4f55\u7528\u6237\u8868\u4e2d\u7684\u4efb\u4f55\u6570\u636e\u3002
db_denydatawriter \u4e0d\u80fd\u66f4\u6539\u6570\u636e\u5e93\u5185\u4efb\u4f55\u7528\u6237\u8868\u4e2d\u7684\u4efb\u4f55\u6570\u636e\u3002\u5728\u8fd9\u513f\u628a\u65b0\u5efa\u7684\u6570\u636e\u5e93\u89d2\u8272\u7684\u6743\u9650\u914d\u7f6e\u597d\uff0c\u6bd4\u5982\u9700\u8981\u4f7f\u7528\u54ea\u4e2a\u8868\u3001\u89c6\u56fe\u3001\u5b58\u50a8\u8fc7\u7a0b\u7b49\u3002\u7136\u540e\u628aDb_owner\u548cdb_securityadmin\u3001db_backupoperator\u53d6\u6d88\uff0c\u4e0d\u7ed9\u653b\u51fb\u8005BACKUPDATABASE\u548ccreateTABLE\u7684\u673a\u4f1a\uff0c\u4e00\u4f46\u653b\u51fb\u8005\u5177\u6709\u8fd9\u4e24\u4e2a\u6743\u9650\uff0c\u90a3\u4e48\u4f60\u7684\u7f51\u7ad9\u5c31\u8fd8\u5904\u5728\u5341\u5206\u5371\u9669\u7684\u72b6\u6001\u3002\u8fd8\u6709\u6ce8\u610f\u4e00\u4e0b\uff0c\u5728\u521b\u5efa\u6570\u636e\u5e93\u8d26\u53f7\u65f6\uff0c\u5343\u4e07\u4e0d\u80fd\u5bf9\u670d\u52a1\u5668\u89d2\u8272\u8fdb\u884c\u9009\u62e9\u3002 <\/p>\n
\u3000\u3000\u7b2c\u56db\u6b65\u662f\u4fee\u6539SQL SERVER\u5185\u7f6e\u5b58\u50a8\u8fc7\u7a0b\u3002SQLSERVER\u4f30\u8ba1\u662f\u4e3a\u4e86\u5b89\u88c5\u6216\u8005\u5176\u5b83\u65b9\u9762\uff0c\u5b83\u5185\u7f6e\u4e86\u4e00\u6279\u5371\u9669\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u80fd\u8bfb\u5230\u6ce8\u518c\u8868\u4fe1\u606f\uff0c\u80fd\u5199\u5165\u6ce8\u518c\u8868\u4fe1\u606f\uff0c\u80fd\u8bfb\u78c1\u76d8\u5171\u4eab\u4fe1\u606f\u7b49\u7b49\u2026\u2026\u5404\u4f4d\u770b\u5230\u8fd9\u513f\uff0c\u5fc3\u91cc\u53ef\u80fd\u4f1a\u5728\u60f3\uff0c\u6211\u7684\u7f51\u7ad9\u4e2d\u6709\u5176\u5b83\u7684\u4ee3\u7801\uff0c\u53c8\u4e0d\u50cf\u67e5\u8be2\u5206\u6790\u5668\u90a3\u6837\u80fd\u67e5\u63a5\u5c06\u7ed3\u679c\u8f93\u51fa\u3002\u7ed9\u4f60\u8fd9\u4e2a\u6743\u9650\uff0c\u53c8\u4e0d\u80fd\u600e\u4e48\u6837\uff0c\u8fd8\u662f\u770b\u4e0d\u5230\u4fe1\u606f\u3002\u5982\u679c\u5404\u4f4d\u8fd9\u6837\u60f3\u5c31\u5927\u9519\u7279\u9519\u4e86\u3002\u63d0\u793a\u4e00\u4e0b\uff0c\u5982\u679c\u653b\u51fb\u8005\u6709createTABLE\u7684\u6743\u9650\uff0c\u90a3\u4e48\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u8868\uff0c\u7136\u540e\u5c06\u4fe1\u606finsert\u5230\u8868\u4e2d\uff0c\u7136select\u51fa\u6765\uff0c\u63a5\u7740\u8ddf\u6570\u5b57\u8fdb\u884c\u6bd4\u8f83\uff0c\u8ba9SQLSERVER\u62a5\u9519\uff0c\u90a3\u4e48\u7ed3\u679c\u5c31\u5168\u51fa\u6765\u4e86\u2026\u2026\u6240\u4ee5\u6211\u4eec\u8981\u62a5\u7740\u5b81\u9519\u6740\uff0c\u4e0d\u653e\u8fc7\u7684\u6001\u5ea6\u8fdb\u884c\u4fee\u8865\u3002\u5148\u6765\u5217\u51fa\u5371\u9669\u7684\u5185\u7f6e\u5b58\u50a8\u8fc7\u7a0b\uff1a
\u4f8b\u5982\uff1axp_cmdshell\u5c4f\u853d\u7684\u65b9\u6cd5\u4e3a\uff1aEXEC sp_dropextendedproc ‘xp_cmdshell’
\uff0c\u5982\u679c\u9700\u8981\u7684\u8bdd\uff0c\u518d\u7528\u3000EXEC sp_addextendedproc \u2019xp_cmdshell\u2019, ‘xpsql70.dll\u2019 \u8fdb\u884c\u6062\u590d\u3002\u5982\u679c\u4f60\u4e0d\u77e5\u9053xp_cmdshell\u4f7f\u7528\u7684\u662f\u54ea\u4e2a.dll\u6587\u4ef6\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528sp_helpextendedproc
xp_cmdshell\u6765\u67e5\u770bxp_cmdshell\u4f7f\u7528\u7684\u662f\u54ea\u4e2a\u52a8\u6001\u8054\u63a5\u5e93\u3002\u3000\u3000\u53e6\u5916\uff0c\u5c06xp_cmdshell\u5c4f\u853d\u540e\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u505a\u7684\u6b65\u9aa4\u662f\u5c06xpsql70.dll\u6587\u4ef6\u8fdb\u884c\u6539\u540d\uff0c\u4ee5\u9632\u6b62\u83b7\u5f97SA\u7684\u653b\u51fb\u8005\u5c06\u5b83\u8fdb\u884c\u6062\u590d\u3002
\u3000\u3000\u6211\u4eec\u505a\u5230\u8fd9\u513f\uff0c\u4f60\u7684SQLSERVER\u5c31\u57fa\u672c\u4e0a\u5b89\u5168\u4e86\u3002\u4f46\u662f\u4fe1\u606f\u8fd8\u662f\u80fd\u4e00\u6837\u7684\u5916\u6cc4\u3002\u6bd5\u7adfselect\u6211\u4eec\u662f\u65e0\u6cd5\u53d6\u6d88\u7684\uff0c\u9664\u975e\u4f60\u7684\u7f51\u7ad9\u7528\u7684\u662fHTML\u3002SQLINJECTION\u7684\u9632\u8303\u8fd8\u9700\u8981\u6211\u4eec\u8fd9\u4e9b\u7a0b\u5e8f\u5458\u6765\u6ce8\u610f\uff0c\u8fd9\u624d\u662f\u6cbb\u672c\u4e4b\u6cd5\u3002\u6211\u4eec\u5728\u9ad8\u7ea7\u8bbe\u7f6e\u7bc7\u518d\u63a5\u7740\u5bf9SQLSERVER\u7684\u5b89\u5168\u505a\u4e0b\u4e00\u6b65\u7684\u5206\u6790\u3002<\/p>\n
\u3000\u3000SQL\u6ce8\u5165\u8d8a\u6765\u8d8a\u591a\u7684\u88ab\u5229\u7528\u6765\u5165\u4fb5\u7f51\u7ad9\uff0c\u90e8\u5206WEB\u7a0b\u5e8f\u5458\u4e5f\u5f00\u59cb\u5173\u6ce8\u8fd9\u65b9\u9762\u7684\u77e5\u8bc6\uff0c\u4f46\u7531\u4e8e\u5bf9\u5165\u4fb5\u7684\u65b9\u6cd5\u4e00\u77e5\u534a\u89e3\uff0c\u5bfc\u81f4\u5728\u8fc7\u6ee4\u7684\u65f6\u5019\u6f0f\u6389\u67d0\u4e9b\u5b57\u7b26\uff0c\u9020\u6210\u5b89\u5168\u6f0f\u6d1e\uff1b\u6216\u8005\u662f\u8349\u6728\u7686\u5175\uff0c\u628a\u4e00\u4e9b\u5408\u6cd5\u7684\u7528\u6237\u8bf7\u6c42\u90fd\u62d2\u4e4b\u95e8\u5916\uff0c\u8bd5\u60f3\u4e00\u4e0b\uff0c\u5f53\u7528\u6237\u60f3\u8f93\u5165\u4e2aI\u2019m a boy\u7684\u65f6\u5019\uff0c\u5374\u7ed9\u4f60\u81ed\u9a82\u4e00\u987f\uff0c\u4ed6\u8fd8\u4f1a\u613f\u610f\u518d\u4e0a\u4f60\u7684\u7f51\u7ad9\u5417\uff1f\u4e0b\u9762\uff0c\u6211\u4ece\u7a0b\u5e8f\u65b9\u9762\u4ecb\u7ecd\u4e00\u4e0bSQL\u6ce8\u5165\u7684\u9632\u5fa1\u65b9\u6cd5\uff0c\u9996\u5148\u770b\u8fd9\u4e09\u53e5\u6700\u7b80\u5355SQL\u8bed\u53e5
1.SQL=”select * from Users where UserID=” & Request(“ID”)
2.SQL=”select * from Users where UserID=\u2019” & Request(“ID”) & “\u2019”
3.SQL=”select * from Users where UserName like \u2019%” & Request(“Name”)
& “%\u2019”\u7b2c\u4e00\u53e5\uff0c\u53c2\u6570\u662f\u6570\u5b57\u578b\uff0c\u8fd9\u4e2a\u5f88\u660e\u663e\u3002\u7b2c\u4e8c\u53e5\uff0c\u5982\u679c\u5b57\u6bb5UserID\u662fint\u578b\uff0c\u5c31\u6709\u4e9b\u4eba\u5206\u4e0d\u6e05\u695a\u4e86\u3002\u5176\u5b9e\uff0c\u533a\u5206\u7b2c\u6570\u5b57\u5f04\u548c\u5b57\u7b26\u578b\u53c2\u6570\uff0c\u53ea\u8981\u770bSQL\u8bed\u53e5\u53c2\u6570\u4e24\u8fb9\u6709\u6ca1\u6709\u5355\u5f15\u53f7\u5373\u53ef\uff0c\u5f88\u660e\u663e\uff0c\u7b2c\u4e00\u53e5\u6ca1\u5355\u5f15\u53f7\uff0c\u662f\u6570\u5b57\u578b\uff1b\u7b2c\u4e8c\u7b2c\u4e09\u53e5\u6709\u5355\u5f15\u53f7\uff0c\u662f\u5b57\u7b26\u578b\u3002
\u3000\u3000\u5bf9\u4e8e\u6570\u5b57\u578b\u53d8\u91cf\uff0c\u4f20\u5165\u7684\u53c2\u6570\u90fd\u4f1a\u76f4\u63a5\u9644\u52a0\u5230SQL\u8bed\u53e5\u4e0a\u6267\u884c\uff0c\u800c\u56e0\u4e3a\u53c2\u6570\u662f\u6570\u5b57\u578b\uff0c\u6240\u4ee5\u7528isNumeric\u5224\u65ad\u662f\u5f88\u5b89\u5168\u7684\uff0c\u6211\u66fe\u7ecf\u8bd5\u8fc7\u7528\u4e4b\u7c7b\u8bd5\u56fe\u65ad\u5f00\u53c2\u6570\uff0c\u4f46\u7ed3\u679c\u90fd\u662f\u5931\u8d25\u3002
\u3000\u3000\u5bf9\u4e8e\u5b57\u7b26\u578b\u53d8\u91cf\uff0c\u4f20\u5165\u7684\u53c2\u6570\u90fd\u662f\u505a\u4e3a\u5e38\u91cf\uff0c\u6bd4\u5982\u4f60\u4f201 and 1=1\u8fdb\u53bb\uff0cSQL\u8bed\u53e5\u5c31\u662fUserID=? and
1=1\u2019\uff0c\u5728\u5355\u5f15\u53f7\u754c\u5b9a\u8303\u56f4\u91cc\u9762\u7684\u503c\u6c38\u8fdc\u90fd\u53ea\u662f\u4e00\u4e2a\u5e38\u91cf\uff0c\u8981\u6253\u7834\u8fd9\u4e2a\u8303\u56f4\uff0c\u552f\u4e00\u7684\u5b57\u7b26\u5c31\u662f\u754c\u5b9a\u7684\u5b57\u7b26\uff1a\u5355\u5f15\u53f7\u3002\u6240\u4ee5\uff0c\u5b57\u7b26\u578b\u53d8\u91cf\u53ea\u8981\u8fc7\u6ee4\u4e86\u2019\u53f7\u5c31\u5b8c\u5168\u5b89\u5168\u4e86\uff0c\u81f3\u4e8e\u5982\u4f55\u8fc7\u6ee4\uff0c\u6700\u597d\u662f\u628a\u4e00\u4e2a\u5355\u5f15\u53f7\u66ff\u6362\u6210\u4e24\u4e2a\u5355\u5f15\u53f7\uff0c\u56e0\u4e3aSQL\u8bed\u53e5\u91cc\u9762\u89c4\u5b9a\uff0c\u2019\u5e38\u91cf\u2019\u8fd9\u6837\u8868\u793a\u7684\u5e38\u91cf\u91cc\u9762\uff0c\u5e38\u91cf\u91cc\u9762\u5982\u679c\u8981\u6709\u5355\u5f15\u53f7\uff0c\u53ef\u4ee5\u7528\u4e24\u4e2a\u5355\u5f15\u53f7\u4ee3\u66ff\u3002\u8fd9\u6837\uff0c\u65e2\u53ef\u4ee5\u4fdd\u6301\u7528\u6237\u8f93\u5165\u7684\u539f\u8c8c\uff0c\u53c8\u53ef\u4ee5\u4fdd\u8bc1\u7a0b\u5e8f\u7684\u5b89\u5168\u3002
\u3000\u3000\u4e0b\u9762\u662f\u4e24\u4e2a\u51fd\u6570\uff0c\u5927\u5bb6\u53ef\u4ee5Copy\u8fc7\u53bb\u76f4\u63a5\u8c03\u7528\u5c31\u884c\u4e86\u3002\u2019—————————————————————
\u2019 NB\u8054\u76df\u9632\u6ce8\u5165\u51fd\u6570 ReqNum \/ ReqStr
\u2019—————————————————————
Function ReqNum ( StrName )
ReqNum = Request ( StrName )
if Not isNumeric ( ReqNum ) then
Response.Write “\u53c2\u6570\u5fc5\u987b\u4e3a\u6570\u5b57\u578b!”
Response.End
End if
End FunctionFunction ReqStr ( StrName )
ReqStr = Replace ( Request(StrName), “\u2019”, “\u2019\u2019” )
End Function
\u4ee5\u4e0a\u9762\u4e09\u53e5SQL\u8bed\u53e5\uff0c\u8bf4\u660e\u4e00\u4e0b\u8c03\u7528\u65b9\u6cd5\uff1a
1.SQL=”select * from Users where UserID=” & ReqNum(“ID”)
2.SQL=”select * from Users where UserID=\u2019” & ReqStr(“ID”) & “\u2019”
3.SQL=”select * from Users where UserName like \u2019%” & ReqStr(“Name”)
& “%\u2019”\u3000\u3000\u91cd\u7533\u4e00\u70b9\uff1a\u4e0a\u9762\u7684\u65b9\u6cd5\u65e0\u8bba\u5bf9SQLServer\u5e93\u8fd8\u662fAccess\u6216\u662f\u5176\u5b83\u6570\u636e\u5e93\uff0c\u90fd\u662f\u7edd\u5bf9\u9002\u7528\u3001\u7edd\u5bf9\u5b89\u5168\uff0c\u4f46\u6ce8\u610f\u4e00\u70b9\uff0cSQLServer\u7684\u5b58\u50a8\u8fc7\u7a0b\u662f\u4e2a\u4f8b\u5916\uff0c\u8be5\u60c5\u51b5\u4e0b\u8981\u628a\u5355\u5f15\u53f7\u66ff\u6362\u6210\u56db\u4e2a\u5355\u5f15\u53f7\uff0c\u4ee5\u4fdd\u5b89\u5168\u3002 <\/p>\n
\u5982\u679c\u662f\u5229\u7528.NET\u7684\u8bed\u8a00\u7684\u8bdd\uff0c\u6211\u89c9\u5f97\u4e00\u4e2a\u7b80\u5355\u7684\u529e\u6cd5\u5c31\u662f\u5728Sql\u8bed\u53e5\u4e2d\u4f7f\u7528\u53c2\u6570\uff0c\u5229\u7528SqlCommand\u7684\u53c2\u6570\u96c6\u5408\u8bbe\u7f6eSql\u8bed\u53e5\u7684\u53c2\u6570\u503c\u3002\u800c\u4e14\u9664\u975e\u903b\u8f91\u975e\u5e38\u7b80\u5355\uff0c\u5426\u5219\u6700\u597d\u5c01\u88c5\u5230\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u3002 <\/p>\n
==========================================================
\u9644\uff1a\u5b89\u5168\u914d\u7f6e\u5b9e\u7528\u64cd\u4f5c\uff1a
\uff11\u3001\u5220\u9664\u5371\u9669\u7684\u5185\u7f6e\u5b58\u50a8\u8fc7\u7a0b\uff08\u9002\u7528\u5927\u591a\u6570SQL Server\uff09
USE master
EXEC sp_dropextendedproc ‘xp_cmdshell’
EXEC sp_dropextendedproc ‘xp_regaddmultistring’
EXEC sp_dropextendedproc ‘xp_regdeletekey’
EXEC sp_dropextendedproc ‘xp_regdeletevalue’
EXEC sp_dropextendedproc ‘xp_regenumkeys’
EXEC sp_dropextendedproc ‘xp_regenumvalues’
EXEC sp_dropextendedproc ‘xp_regread’
EXEC sp_dropextendedproc ‘xp_regremovemultistring’
EXEC sp_dropextendedproc ‘xp_regwrite’
EXEC sp_dropextendedproc ‘sp_OAcreate’
EXEC sp_dropextendedproc ‘sp_OADestroy’
EXEC sp_dropextendedproc ‘sp_OAMethod’
EXEC sp_dropextendedproc ‘sp_OAGetProperty’
EXEC sp_dropextendedproc ‘sp_OASetProperty’
EXEC sp_dropextendedproc ‘sp_OAGetErrorInfo’
EXEC sp_dropextendedproc ‘sp_OAStop’<\/p>\n
\uff12\u3001\u5c06 xpsql70.dll \u6587\u4ef6\u8fdb\u884c\u6539\u540d\u3002<\/p>\n
============================================================<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7b2c\u4e00\u6b65\u80af\u5b9a\u662f\u6253\u4e0aSQLSERVER\u6700\u65b0\u7684\u5b89\u5168\u8865\u4e01\uff0c\u73b0\u5728\u8865\u4e01\u5df2\u7ecf\u51fa\u5230\u4e86SP4\u3002\u5982\u679c\u8fd9\u4e00\u6b65\u90fd\u6ca1\u6709\u505a\u597d\uff0c\u90a3\u6211\u4eec\u4e5f\u6ca1\u6709<\/p>\n