Looking for logging into the Owasp 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 Owasp site. After that you can login as usual with your login credentials.
https://www.owasp.org/index.php/Authentication_Cheat_Sheet
https://www.owasp.org/index.php/Portal
https://www.pupha.net/archives/2046/
https://qiita.com/inahukus/items/d3deb869c88e407a9f8a
https://techblog.gmo-ap.jp/2018/12/12/owasp-zap%E3%81%A7web%E3%82%A2%E3%83%97%E3%83%AA%E3%82%B1%E3%83%BC%E3%82%B7%E3%83%A7%E3%83%B3%E8%84%86%E5%BC%B1%E6%80%A7%E8%A8%BA%E6%96%AD/
http://yosiopp.net/post/20160810/
http://teamduet.hatenablog.com/entry/2014/11/26/171453
https://www.n-novice.com/entry/2017/12/28/210000
https://codezine.jp/article/detail/9504
https://github.com/OWASP/WebGoat/blob/master/webgoat/src/main/java/org/owasp/webgoat/lessons/DBSQLInjection/Login.java
https://teratail.com/questions/145834
https://sechow.com/bricks/docs/login-2.html
https://books.google.co.jp/books?id=pn2GDwAAQBAJ&pg=PA185&lpg=PA185&dq=owasp+login