CWE-202: Exposure of Sensitive Information Through Data Queries
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When trying to keep information confidential, an attacker can often infer some of the information by using statistics.
In situations where data should not be tied to individual users, but a large number of users should be able to make queries that "scrub" the identity of users, it may be possible to get information about a user -- e.g., by specifying search terms that are known to be unique to that user.
This table shows the weaknesses and high level categories that are related to this weakness. These relationships are defined as ChildOf, ParentOf, MemberOf and give insight to similar items that may exist at higher and lower levels of abstraction. In addition, relationships such as PeerOf and CanAlsoBe are defined to show similar weaknesses that the user may want to explore.
Relevant to the view "Research Concepts" (CWE-1000)
The different Modes of Introduction provide information about how and when this weakness may be introduced. The Phase identifies a point in the life cycle at which introduction may occur, while the Note provides a typical scenario related to introduction during the given phase.
This listing shows possible areas for which the given weakness could appear. These may be for specific named Languages, Operating Systems, Architectures, Paradigms, Technologies, or a class of such platforms. The platform is listed along with how frequently the given weakness appears for that instance.
Class: Not Language-Specific (Undetermined Prevalence)
This table specifies different individual consequences associated with the weakness. The Scope identifies the application security area that is violated, while the Impact describes the negative technical impact that arises if an adversary succeeds in exploiting this weakness. The Likelihood provides information about how likely the specific consequence is expected to be seen relative to the other consequences in the list. For example, there may be high likelihood that a weakness will be exploited to achieve a certain impact, but a low likelihood that it will be exploited to achieve a different impact.
This MemberOf Relationships table shows additional CWE Categories and Views that reference this weakness as a member. This information is often useful in understanding where a weakness fits within the context of external information sources.
The relationship between CWE-202 and CWE-612 needs to be investigated more closely, as they may be different descriptions of the same kind of problem. CWE-202 is also being considered for deprecation, as it is not clearly described and may have been misunderstood by CWE users. It could be argued that this issue is better covered by CAPEC; an attacker can utilize their data-query privileges to perform this kind of operation, and if the attacker should not be allowed to perform the operation - or if the sensitive data should not have been made accessible at all - then that is more appropriately classified as a separate CWE related to authorization (see the parent, CWE-1230).
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