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CWE-88 - Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

CWE-88

  • Abstraction:
  • Base
  • Structure:
  • Simple
  • Status:
  • Draft
Weakness Name

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

Description

The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

When creating commands using interpolation into a string, developers may assume that only the arguments/options that they specify will be processed. This assumption may be even stronger when the programmer has encoded the command in a way that prevents separate commands from being provided maliciously, e.g. in the case of shell metacharacters. When constructing the command, the developer may use whitespace or other delimiters that are required to separate arguments when the command. However, if an attacker can provide an untrusted input that contains argument-separating delimiters, then the resulting command will have more arguments than intended by the developer. The attacker may then be able to change the behavior of the command. Depending on the functionality supported by the extraneous arguments, this may have security-relevant consequences.

Common Consequences

Scope: Confidentiality, Integrity, Availability, Other

Impact: Execute Unauthorized Code or Commands, Alter Execution Logic, Read Application Data, Modify Application Data

Notes: An attacker could include arguments that allow unintended commands or code to be executed, allow sensitive data to be read or modified or could cause other unintended behavior.

Related Weaknesses
  • Release Date:
  • 2006-07-19
  • Latest Modification Date:
  • 2024-07-16