CWE-694

Use of Multiple Resources with Duplicate Identifier

Base

What it is

The product uses multiple resources that can have the same identifier, in a context in which unique identifiers are required.

If the product assumes that each resource has a unique identifier, the product could operate on the wrong resource if attackers can cause multiple resources to be associated with the same identifier.

Impact

Access Control	Bypass Protection Mechanism
Other	Quality Degradation

Mitigations

[Architecture and Design] Where possible, use unique identifiers. If non-unique identifiers are detected, then do not operate any resource with a non-unique identifier and report the error appropriately.

Real-world CVE examples

CVE-2013-4787 — chain: mobile OS verifies cryptographic signature of file in an archive, but then installs a different file with the same name that is also listed in the archiv

Related weaknesses

CWE-99 (childof)CWE-573 (childof)

Test & detect

Browse all common weaknesses, check related exploited CVEs, or map to ATT&CK techniques.

Source: MITRE CWE. View on cwe.mitre.org →