Name Leveraging/Manipulating Configuration File Search Paths
Summary This attack loads a malicious resource into a program's standard path used to bootstrap and/or provide contextual information for a program like a path variable or classpath. 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. A standard UNIX path looks similar to this If the attacker modifies the path variable to point to a locale that includes malicious resources then the user unwittingly can execute commands on the attackers' behalf: This is a form of usurping control of the program and the attack can be done on the classpath, database resources, or any other resources built from compound parts. At runtime detection and blocking of this attack is nearly impossible, because the configuration allows execution.
Prerequisites The attacker must be able to write to redirect search paths on the victim host.
Solutions 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 Weaknesses
CWE ID Description
CWE-426 Untrusted Search Path
CWE-427 Uncontrolled Search Path Element
CWE-428 Unquoted Search Path or Element
CWE-706 Use of Incorrectly-Resolved Name or Reference
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