CAPEC 540 Overread Buffers

Draft Standard Low Risk

Severity High

Description

An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Attack Execution Flow

Step 1

Explore

[Identify target application] The adversary identifies a target application or program to perform the buffer overread on. Adversaries often look for applications that accept user input and that perform manual memory management.

Step 2

Experiment

[Find attack vector] The adversary identifies an attack vector by looking for areas in the application where they can specify to read more data than is required.

Step 3

Exploit

[Overread the buffer] The adversary provides input to the application that gets it to read past the bounds of a buffer, possibly revealing sensitive information that was not intended to be given to the adversary.

CAPEC 540 Overread Buffers

Description

Attack Execution Flow

Step 1

Step 2

Step 3

Consequences

Security Scopes Affected

Potential Impacts

Relationships

Parent CAPECs

CAPEC 540 Overread Buffers

Description

Attack Execution Flow

Step 1

Step 2

Step 3

Consequences

Security Scopes Affected

Potential Impacts

Relationships

Parent CAPECs

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