CWE-654—Reliance on a Single Factor in a Security Decision
PUBLISHEDweakness record
released 2008-01-30 · last modified 2023-10-26
Metadata
- CWE ID:
- CWE-654
- Abstraction:
- Base
- Structure:
- Simple
- Status:
- Draft
- Release Date:
- 2008-01-30
- Latest Modification Date:
- 2023-10-26
Weakness Name
Reliance on a Single Factor in a Security Decision
Description
A protection mechanism relies exclusively, or to a large extent, on the evaluation of a single condition or the integrity of a single object or entity in order to make a decision about granting access to restricted resources or functionality.
Common Consequences
- Scope:
- Access Control
- Impact:
- Gain Privileges or Assume Identity
- Notes:
- If the single factor is compromised (e.g. by theft or spoofing), then the integrity of the entire security mechanism can be violated with respect to the user that is identified by that factor.
- Scope:
- Non-Repudiation
- Impact:
- Hide Activities
- Notes:
- It can become difficult or impossible for the product to be able to distinguish between legitimate activities by the entity who provided the factor, versus illegitimate activities by an attacker.