Cloneable Class Containing Sensitive Information
The code contains a class with sensitive data, but the class is cloneable. The data can then be accessed by cloning the class.
Cloneable classes are effectively open classes, since data cannot be hidden in them. Classes that do not explicitly deny cloning can be cloned by any other class without running the constructor.
The following examples help to illustrate the nature of this weakness and describe methods or techniques which can be used to mitigate the risk.
Note that the examples here are by no means exhaustive and any given weakness may have many subtle varieties, each of which may require different detection methods or runtime controls.
The following example demonstrates the weakness.
Make classes uncloneable by defining a clone function like:
Weaknesses in this category are related to the rules and recommendations in the Object Orientation (OBJ) section of the SEI CERT Oracle Secure Coding Standard for Java.
This category identifies Software Fault Patterns (SFPs) within the Exposed Data cluster (SFP23).
This view (slice) covers all the elements in CWE.
This view contains a selection of weaknesses that represent the variety of weaknesses that are captured in CWE, at a level of abstraction that is likely to be useful t...
This view (slice) lists weaknesses that can be introduced during implementation.