type-confusion-testing

Type confusion testing involves sending unexpected input formats to web app parameters and analyzing responses for authentication bypasses or authorization failures. This Skill provides a structured methodology to identify target parameters, send type variants, and craft exploitation payloads.

A type confusion attack exploits insecure input type handling by sending parameters in unexpected formats, causing loose comparisons to evaluate true. This leads to authentication bypasses when applications fail strict type validation across PHP, Ruby, JavaScript, Python, Java, and Go services.

Yes, type confusion testing applies to PHP, Ruby, JavaScript, Python, Java, and Go web services. It provides language-specific exploitation techniques including magic hash bypasses for PHP, array injection, and NoSQL operator injection to validate vulnerable parameter handling.

Detect insecure type handling using pre-built grep commands to find vulnerable loose comparisons and type-unsafe logic in application codebases. These source code detection patterns identify business logic flaws where input validation fails to enforce expected data types.

Test login endpoints for array injection bypasses by sending the email or password parameter as an array instead of a string. This type confusion technique checks whether unexpected input formats trigger authentication bypass vulnerabilities due to insecure parameter handling.

Sending an array instead of a string causes unexpected control flow when web applications fail to validate incoming parameter data types. This type confusion leads to authorization failures, unexpected query behavior, and information leaks as type-unsafe logic processes malformed inputs.