Looking for logging into the Asp Sql Injection site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Asp Sql Injection site. After that you can login as usual with your login credentials.
http://www.securityidiots.com/Web-Pentest/SQL-Injection/bypass-login-using-sql-injection.html
https://www.c-sharpcorner.com/UploadFile/75a48f/how-sql-injection-can-be-possible-in-asp-net-websites/
http://gigi.nullneuron.net/gigilabs/bypassing-a-login-form-using-sql-injection/
https://www.exploit-db.com/exploits/32756
https://www.exploit-db.com/exploits/4824
https://www.w3schools.com/sql/sql_injection.asp
https://security.stackexchange.com/questions/10071/how-to-exploit-this-sql-injection-vulnerability
https://forums.asp.net/t/1974286.aspx?ASP+NET+sql+injection+example
https://www.guru99.com/learn-sql-injection-with-practical-example.html
https://www.tenable.com/plugins/nessus/11548
https://www.symantec.com/security_response/attacksignatures/detail.jsp?asid=20940
https://blogs.iis.net/nazim/sql-injection-demo