Home > CAPEC List > CAPEC-475: Signature Spoofing by Improper Validation (Version 3.0)  

CAPEC-475: Signature Spoofing by Improper Validation

Attack Pattern ID: 475
Abstraction: Detailed
Status: Draft
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+ Description
An attacker exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.
+ Likelihood Of Attack

Low

+ Typical Severity

High

+ Relationships

The table(s) below shows the other attack patterns and high level categories that are related to this attack pattern. 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 CanFollow, PeerOf, and CanAlsoBe are defined to show similar attack patterns that the user may want to explore.

+ Relevant to the view "Mechanisms of Attack" (CAPEC-1000)
NatureTypeIDName
ChildOfStandard Attack PatternStandard Attack Pattern - A standard level attack pattern in CAPEC is focused on a specific methodology or technique used in an attack. It is often seen as a singular piece of a fully executed attack. A standard attack pattern is meant to provide sufficient details to understand the specific technique and how it attempts to accomplish a desired goal. A standard level attack pattern is a specific type of a more abstract meta level attack pattern.473Signature Spoof
+ Prerequisites
Recipient is using a weak cryptographic signature verification algorithm or a weak implementation of a cryptographic signature verification algorithm, or the configuration of the recipient's application accepts the use of keys generated using cryptographically weak signature verification algorithms.
+ Skills Required
[Level: High]
Cryptanalysis of signature verification algorithm
[Level: High]
Reverse engineering and cryptanalysis of signature verification algorithm implementation
+ Mitigations
Use programs and products that contain cryptographic elements that have been thoroughly tested for flaws in the signature verification routines.
+ Content History
Submissions
Submission DateSubmitterOrganization
2014-06-23CAPEC Content TeamThe MITRE Corporation
Modifications
Modification DateModifierOrganization
2017-05-01CAPEC Content TeamThe MITRE Corporation
Updated Related_Attack_Patterns

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Page Last Updated or Reviewed: July 31, 2018