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CAPEC-474: Signature Spoofing by Key Theft

Attack Pattern ID: 474
Abstraction: Detailed
Status: Draft
Presentation Filter:
+ Description
An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
+ Likelihood Of Attack


+ Typical Severity


+ Relationships
Section HelpThis table shows the other attack patterns and high level categories that are related to this attack pattern. These relationships are defined as ChildOf and ParentOf, 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.
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
Section HelpThis table shows the views that this attack pattern belongs to and top level categories within that view.
+ Prerequisites
An authoritative or reputable signer is storing their private signature key with insufficient protection.
+ Skills Required
[Level: Low]
Knowledge of common location methods and access methods to sensitive data
[Level: High]
Ability to compromise systems containing sensitive data
+ Mitigations
Restrict access to private keys from non-supervisory accounts
Restrict access to administrative personnel and processes only
Ensure all remote methods are secured
Ensure all services are patched and up to date
+ References
[REF-411] Sigbjørn Vik. "Security breach stopped". 2013-06-26.
[REF-412] Patrick Morley. "Bit9 and Our Customers’ Security". 2013-02-08.
[REF-413] Brad Arkin. "Inappropriate Use of Adobe Code Signing Certificate". 2012-09-27.
+ Content History
Submission DateSubmitterOrganization
2014-06-23CAPEC Content TeamThe MITRE Corporation
Modification DateModifierOrganization
2019-04-04CAPEC Content TeamThe MITRE Corporation
Updated Related_Weaknesses
2020-12-17CAPEC Content TeamThe MITRE Corporation
Updated Mitigations
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Page Last Updated or Reviewed: October 21, 2021