Home > CAPEC List > CAPEC-474: Signature Spoofing by Key Theft (Version 3.0)  

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

Medium

+ 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
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". http://my.opera.com/securitygroup/blog/2013/06/26/opera-infrastructure-attack. 2013-06-26.
[REF-412] Patrick Morley. "Bit9 and Our Customers’ Security". https://blog.bit9.com/2013/02/08/bit9-and-our-customers-security/. 2013-02-08.
[REF-413] Brad Arkin. "Inappropriate Use of Adobe Code Signing Certificate". http://blogs.adobe.com/asset/2012/09/inappropriate-use-of-adobe-code-signing-certificate.html. 2012-09-27.
+ Content History
Submissions
Submission DateSubmitterOrganization
2014-06-23CAPEC Content TeamThe MITRE Corporation

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Page Last Updated or Reviewed: July 31, 2018