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Нашёл 12 млн ответов for 'the effect of alcoholic UNION ALL SELECT NULL,NULL,NULL,NULL-- hWEB'.

4/4
UNION SELECT NULL,NULL,NULL-- etc. If the number of nulls does not match the number of columns, the database returns an error, such as: All queries .... UNION ALL SELECT NULL, *, NULL, NULL FROM email ...

https://www.docdroid.net/file/download/y6aFEhT/1589610482388-pdf.pdf

Advanced SQL Injection
SQL Injection is still the biggest security problem in web applications. This year we can SELECT firstname, lastname FROM customers UNION SELECT username, null FROM The most common techniques are the usage of "ORDER BY" or adding NULL values to...

https://www.nds.ruhr-uni-bochum.de/media/hfs/attachments/files/2010/03/hackpra09_kornburst_advanced_sql_injection.pdf

Practical Identification of SQL Injection Vulnerabilities
Although there is an abundance of good literature in the community about how to prevent SQL injection vulnerabilities, much of this documentation is geared toward web application developers. This advice is of limited benefit to IT administrators who are merely...

https://us-cert.cisa.gov/sites/default/files/publications/Practical-SQLi-Identification.pdf

Microsoft Word - Blindfolded SQL Injection - Final.doc
This type of NULL injection serves two purposes. The main purpose is to get a working UNION statement that has no errors. Although this UNION still does not retrieve any real data, it provides an indication that the statement indeed works.

https://www.imperva.com/docs/IMPERVA_HII_blind-sql-injection-attacks.pdf

Advanced_SQL_InjectionV2
Union: The SQL UNION is used to combine the results of two or more SELECT SQL Notice that each SELECT statement within the UNION must have the same number of Change the first part of the query to a null or negative value so we can see what field will...

https://owasp.org/www-chapter-belgium/assets/2010/2010-06-16/Advanced_SQL_InjectionV2.pdf

Go Secure Coding Practices
Common Vulnerabilities in real Go web application. → sql injection, xss, idor, broken authentication id := r.FormValue(“id”) sql := fmt.Sprintf(`select * from data where id=%s`, id) rows, err select * from data where id=-1 union select null,null,database()

https://owasp.org/www-pdf-archive/Owasp-171123063052.pdf

Microsoft PowerPoint - SQLinjectionNotOnly.ppt
ORDER BY clause brute-forcing NULL brute-forcing Sequential number brute-forcing. The number of columns in the SELECT statement is fewer Most of the SQL injections occur within the WHERE clause, but GROUP BY, ORDER BY and LIMIT can also be affected.

https://owasp.org/www-pdf-archive/SQLinjectionNotOnly.pdf

Web Application Injection Vulnerabilities: A Web App'...
SELECT id FROM users WHERE username = ‘Erik’ AND password = ‘QWERTY’. NULL, NULL, NULL# Vector: UNION ALL SELECT NULL, NULL, NULL, NULL, NULL Web Application Input Validation - 30 NULL, NULL, NULL, NULL, [QUERY], NULL, NULL...

https://www.sans.org/reading-room/whitepapers/securecode/web-application-injection-vulnerabilities-web-app-039-s-security-nemesis-34247

Web Application Injection Vulnerabilities: A Web App'...
SELECT id FROM users WHERE username = ‘Erik’ AND password = ‘QWERTY’. NULL, NULL, NULL# Vector: UNION ALL SELECT NULL, NULL, NULL, NULL, NULL Web Application Input Validation - 30 NULL, NULL, NULL, NULL, [QUERY], NULL, NULL...

https://www.sans.org/reading-room/whitepapers/application/web-application-injection-vulnerabilities-web-app-039-s-security-nemesis-34247

SQL - unions clause
The SQL UNION clause/operator is used to combine the results of two or more SELECT statements without returning any duplicate rows. To use UNION, each SELECT must have the same number of columns selected, the same number of column expressions, the...

http://www.tutorialspoint.com/sql/pdf/sql-unions-clause.pdf