CWE

Common Weakness Enumeration

A Community-Developed List of Software Weakness Types

CWE/SANS Top 25 Most Dangerous Software Errors
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ID

CWE-708: Incorrect Ownership Assignment

Weakness ID: 708
Abstraction: Base
Structure: Simple
Status: Incomplete
Presentation Filter:
+ Description
The software assigns an owner to a resource, but the owner is outside of the intended control sphere.
+ Extended Description
This may allow the resource to be manipulated by actors outside of the intended control sphere.
+ Relationships

The table(s) below 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)
+ Relevant to the view "Architectural Concepts" (CWE-1008)
NatureTypeIDName
MemberOfCategoryCategory1011Authorize Actors
+ Relevant to the view "Development Concepts" (CWE-699)
NatureTypeIDName
ChildOfClassClass282Improper Ownership Management
+ Modes Of Introduction

The different Modes of Introduction provide information about how and when this weakness may be introduced. The Phase identifies a point in the software life cycle at which introduction may occur, while the Note provides a typical scenario related to introduction during the given phase.

PhaseNote
Architecture and Design
ImplementationREALIZATION: This weakness is caused during implementation of an architectural security tactic.
Operation
+ Applicable Platforms
The listings below show 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.

Languages

(Language-Independent classes): (Undetermined Prevalence)

+ Common Consequences

The table below 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.

ScopeImpactLikelihood
Confidentiality
Integrity

Technical Impact: Read Application Data; Modify Application Data

An attacker could read and modify data for which they do not have permissions to access directly.
+ Observed Examples
ReferenceDescription
File system sets wrong ownership and group when creating a new file.
OS installs program with bin owner/group, allowing modification.
Manager does not properly restore ownership of a reusable resource when a user logs out, allowing privilege escalation.
Backup software restores symbolic links with incorrect uid/gid.
Product changes the ownership of files that a symlink points to, instead of the symlink itself.
Component assigns ownership of sensitive directory tree to a user account, which can be leveraged to perform privileged operations.
+ Potential Mitigations

Phase: Policy

Periodically review the privileges and their owners.

Phase: Testing

Use automated tools to check for privilege settings.
+ Memberships
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.
+ Notes

Maintenance

This overlaps verification errors, permissions, and privileges.

A closely related weakness is the incorrect assignment of groups to a resource. It is not clear whether it would fall under this entry or require a different entry.

+ Content History
Submissions
Submission DateSubmitterOrganizationSource
2008-09-09CWE Content TeamMITRE
Modifications
Modification DateModifierOrganizationSource
2008-07-01Eric DalciCigital
updated Potential_Mitigations, Time_of_Introduction
2009-03-10CWE Content TeamMITRE
updated Relationships
2009-05-27CWE Content TeamMITRE
updated Description
2011-06-01CWE Content TeamMITRE
updated Common_Consequences, Maintenance_Notes, Other_Notes
2012-05-11CWE Content TeamMITRE
updated Common_Consequences, Relationships
2012-10-30CWE Content TeamMITRE
updated Observed_Examples, Potential_Mitigations
2014-07-30CWE Content TeamMITRE
updated Relationships
2017-11-08CWE Content TeamMITRE
updated Applicable_Platforms, Modes_of_Introduction, Relationships

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Page Last Updated: November 14, 2017