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CWE-325 Detail

CWE-325

Missing Cryptographic Step
Draft
2006-07-19 00:00 +00:00
2023-10-26 00:00 +00:00
CWE Mitre.org

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Missing Cryptographic Step

The product does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than advertised by the algorithm.

Informations

Modes Of Introduction

Implementation : Developers sometimes omit "expensive" (resource-intensive) steps in order to improve performance, especially in devices with limited memory or slower CPUs. This step may be taken under a mistaken impression that the step is unnecessary for the cryptographic algorithm.
Requirements : This issue may happen when the requirements for the cryptographic algorithm are not clearly stated.

Applicable Platforms

Language

Class: Not Language-Specific (Undetermined)

Technologies

Class: Not Technology-Specific (Undetermined)

Common Consequences

Scope Impact Likelihood
Access ControlBypass Protection Mechanism
Confidentiality
Integrity		Read Application Data, Modify Application Data
Accountability
Non-Repudiation		Hide Activities

Observed Examples

Reference Description
CVE-2001-1585Missing challenge-response step allows authentication bypass using public key.

Vulnerability Mapping Notes

Rationale : This CWE entry is at the Base level of abstraction, which is a preferred level of abstraction for mapping to the root causes of vulnerabilities.
Comments : Carefully read both the name and description to ensure that this mapping is an appropriate fit. Do not try to 'force' a mapping to a lower-level Base/Variant simply to comply with this preferred level of abstraction.

Related Attack Patterns

CAPEC-ID Attack Pattern Name
CAPEC-68 Subvert Code-signing Facilities
Many languages use code signing facilities to vouch for code's identity and to thus tie code to its assigned privileges within an environment. Subverting this mechanism can be instrumental in an attacker escalating privilege. Any means of subverting the way that a virtual machine enforces code signing classifies for this style of attack.

Notes

Overlaps incomplete/missing security check.
Can be resultant.

References

REF-1358

hmac_wrapper.sv
https://github.com/HACK-EVENT/hackatdac21/blob/main/piton/design/chip/tile/ariane/src/hmac/hmac_wrapper.sv#L41

REF-1359

HMAC HWIP Technical Specification
https://opentitan.org/book/hw/ip/hmac/

Submission

Name Organization Date Date Release Version
PLOVER 2006-07-19 +00:00 2006-07-19 +00:00 Draft 3

Modifications

Name Organization Date Comment
Eric Dalci Cigital 2008-07-01 +00:00 updated Time_of_Introduction
CWE Content Team MITRE 2008-09-08 +00:00 updated Description, Functional_Areas, Modes_of_Introduction, Relationships, Observed_Example, Relationship_Notes, Taxonomy_Mappings
CWE Content Team MITRE 2011-06-01 +00:00 updated Common_Consequences
CWE Content Team MITRE 2012-05-11 +00:00 updated Common_Consequences, Relationships
CWE Content Team MITRE 2014-06-23 +00:00 updated Relationships
CWE Content Team MITRE 2014-07-30 +00:00 updated Relationships
CWE Content Team MITRE 2017-11-08 +00:00 updated Applicable_Platforms, Modes_of_Introduction, Relationships
CWE Content Team MITRE 2018-03-27 +00:00 updated Relationships
CWE Content Team MITRE 2020-02-24 +00:00 updated Applicable_Platforms, Description, Relationships
CWE Content Team MITRE 2020-08-20 +00:00 updated Common_Consequences, Description, Modes_of_Introduction, Name
CWE Content Team MITRE 2021-10-28 +00:00 updated Relationships
CWE Content Team MITRE 2023-04-27 +00:00 updated Relationships, Time_of_Introduction
CWE Content Team MITRE 2023-06-29 +00:00 updated Mapping_Notes
CWE Content Team MITRE 2023-10-26 +00:00 updated Demonstrative_Examples, References

More information
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