CAPECattack pattern

CAPEC-38 Leveraging/Manipulating Configuration File Search Paths

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Abstraction
Detailed
Status
Draft
Likelihood of attack
High
Typical severity
Very High
CAPEC version
3.9

Description

This pattern of attack sees an adversary load a malicious resource into a program's standard path so that when a known command is executed then the system instead executes the malicious component. The adversary can either modify the search path a program uses, like a PATH variable or classpath, or they can manipulate resources on the path to point to their malicious components. J2EE applications and other component based applications that are built from multiple binaries can have very long list of dependencies to execute. If one of these libraries and/or references is controllable by the attacker then application controls can be circumvented by the attacker.

Prerequisites

• The attacker must be able to write to redirect search paths on the victim host.

Skills required

• [Low] To identify and execute against an over-privileged system interface

Consequences

• Confidentiality, Integrity, Availability: Execute Unauthorized Commands • Confidentiality, Access Control, Authorization: Gain Privileges

Mitigations

• Design: Enforce principle of least privilege • Design: Ensure that the program's compound parts, including all system dependencies, classpath, path, and so on, are secured to the same or higher level assurance as the program • Implementation: Host integrity monitoring

Related

Att&ck technique · MITRE ATT&CK (2)

  • T1574.007 Path Interception by PATH Environment Variable sub-technique
  • T1574.009 Path Interception by Unquoted Path sub-technique

Child of · CAPEC (1)

  • CAPEC-159 Redirect Access to Libraries attack pattern

Weakness · CWE (2)

  • CWE-426 Untrusted Search Path weakness
  • CWE-427 Uncontrolled Search Path Element weakness

Referenced by CWE · attack pattern (2)

  • CWE-426 Untrusted Search Path weakness
  • CWE-427 Uncontrolled Search Path Element weakness