CAPEC-96: Block Access to Libraries
Description
An application typically makes calls to functions that are a part of libraries external to the application. These libraries may be part of the operating system or they may be third party libraries. It is possible that the application does not handle situations properly where access to these libraries has been blocked. Depending on the error handling within the application, blocked access to libraries may leave the system in an insecure state that could be leveraged by an attacker.
- Likelihood of attack
- Medium
- Typical severity
- Medium
- Abstraction
- DetailedA low-level, detailed pattern, often for a particular technology.
Mechanism of attack: Manipulate System Resources
Prerequisites
- An application requires access to external libraries.
- An attacker has the privileges to block application access to external libraries.
Skills required
- LowKnowledge of how to block access to libraries, as well as knowledge of how to leverage the resulting state of the application based on the failed call.
Consequences
- Availability
Alter Execution Logic
- Confidentiality
Other
- ConfidentialityAccess ControlAuthorization
Bypass Protection Mechanism
Mitigations
- Ensure that application handles situations where access to APIs in external libraries is not available securely. If the application cannot continue its execution safely it should fail in a consistent and secure fashion.