STRIDE model
Model for identifying computer security threats / From Wikipedia, the free encyclopedia
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STRIDE is a model for identifying computer security threats[1] developed by Praerit Garg and Loren Kohnfelder at Microsoft.[2] It provides a mnemonic for security threats in six categories.[3]
The threats are:
- Spoofing
- Tampering
- Repudiation
- Information disclosure (privacy breach or data leak)
- Denial of service
- Elevation of privilege[4]
The STRIDE was initially created as part of the process of threat modeling. STRIDE is a model of threats, used to help reason and find threats to a system. It is used in conjunction with a model of the target system that can be constructed in parallel. This includes a full breakdown of processes, data stores, data flows, and trust boundaries.[5]
Today it is often used by security experts to help answer the question "what can go wrong in this system we're working on?"
Each threat is a violation of a desirable property for a system:
Threat | Desired property | Threat Definition |
---|---|---|
Spoofing | Authenticity | Pretending to be something or someone other than yourself |
Tampering | Integrity | Modifying something on disk, network, memory, or elsewhere |
Repudiation | Non-repudiability | Claiming that you didn't do something or were not responsible; can be honest or false |
Information disclosure | Confidentiality | Someone obtaining information they are not authorized to access |
Denial of service | Availability | Exhausting resources needed to provide service |
Elevation of privilege | Authorization | Allowing someone to do something they are not authorized to do |