CAPEC-22
Exploiting Trust in Client
HIGH
HIGH
Draft
2014-06-23 00:00 +00:00
2019-09-30 00:00 +00:00
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Description
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
Informations
Prerequisites
Server software must rely on client side formatted and validated values, and not reinforce these checks on the server side.Skills Required
The attacker must have fairly detailed knowledge of the syntax and semantics of client/server communications protocols and grammarsResources Required
Ability to communicate synchronously or asynchronously with serverMitigations
Design: Ensure that client process and/or message is authenticated so that anonymous communications and/or messages are not accepted by the system.Design: Do not rely on client validation or encoding for security purposes.
Design: Utilize digital signatures to increase authentication assurance.
Design: Utilize two factor authentication to increase authentication assurance.
Implementation: Perform input validation for all remote content.
Related Weaknesses
| Weakness Name | |
|---|---|
| Authentication Bypass by Spoofing This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks. |
|
| Improper Authentication When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. |
|
| Improper Input Validation The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. |
|
| Exposure of Sensitive Information to an Unauthorized Actor The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. |
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| Protection Mechanism Failure The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. |
References
REF-1
Exploiting Software: How to Break CodeG. Hoglund, G. McGraw.
Submission
| Name | Organization | Date | Date Release |
|---|---|---|---|
| CAPEC Content Team | The MITRE Corporation |
Modifications
| Name | Organization | Date | Comment |
|---|---|---|---|
| CAPEC Content Team | The MITRE Corporation | Updated Description Summary, Related_Attack_Patterns | |
| CAPEC Content Team | The MITRE Corporation | Updated Description |
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