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codeql/java/ql/lib/semmle/code/java/security/HardcodedCredentialsComparison.qll
2025-06-24 10:25:06 +02:00

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/**
* Provides classes and predicates to detect comparing a parameter to a hard-coded credential.
*/
overlay[local?]
module;
import java
import HardcodedCredentials
/**
* A call to a method that is or overrides `java.lang.Object.equals`.
*/
class EqualsCall extends MethodCall {
EqualsCall() { this.getMethod() instanceof EqualsMethod }
}
/**
* Holds if `sink` compares password `p` against a hardcoded expression `source`.
*/
predicate isHardcodedCredentialsComparison(EqualsCall sink, HardcodedExpr source, PasswordVariable p) {
source = sink.getQualifier() and
p.getAnAccess() = sink.getArgument(0)
or
source = sink.getArgument(0) and
p.getAnAccess() = sink.getQualifier()
}