Add query for insecure key generation

This commit is contained in:
Joe Farebrother
2024-02-07 16:37:40 +00:00
parent 75a2b9415c
commit c79a3eb6ae
2 changed files with 40 additions and 0 deletions

View File

@@ -1,6 +1,7 @@
/** Definitions for the insecure local authentication query. */
import java
import semmle.code.java.dataflow.DataFlow
/** A base class that is used as a callback for biometric authentication. */
private class AuthenticationCallbackClass extends Class {
@@ -40,3 +41,21 @@ class AuthenticationSuccessCallback extends Method {
not result = this.getASuperResultUse()
}
}
/** A call that sets a parameter for key generation that is insecure for use with biometric authentication. */
class InsecureBiometricKeyParam extends MethodCall {
InsecureBiometricKeyParam() {
exists(string name, CompileTimeConstantExpr val |
this.getMethod()
.hasQualifiedName("android.security.keystore", "KeyGenParameterSpec$Builder", name) and
DataFlow::localExprFlow(val, this.getArgument(0)) and
(
name = ["setUserAuthenticationRequired", "setInvalidatedByBiometricEnrollment"] and
val.getBooleanValue() = false
or
name = "setUserAuthenticationValidityDurationSeconds" and
val.getIntValue() != -1
)
)
}
}