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CWE-375 - Returning a Mutable Object to an Untrusted Caller

CWE-375 Medium

  • Abstraction:
  • Base
  • Structure:
  • Simple
  • Status:
  • Draft
Weakness Name

Returning a Mutable Object to an Untrusted Caller

Description

Sending non-cloned mutable data as a return value may result in that data being altered or deleted by the calling function.

In situations where functions return references to mutable data, it is possible that the external code which called the function may make changes to the data sent. If this data was not previously cloned, the class will then be using modified data which may violate assumptions about its internal state.

Common Consequences

Scope: Access Control, Integrity

Impact: Modify Memory

Notes: Potentially data could be tampered with by another function which should not have been tampered with.

Related Weaknesses
  • Release Date:
  • 2006-07-19
  • Latest Modification Date:
  • 2023-06-29

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