CVE-2024-45246 in Vynamic View
Summary
by MITRE • 10/06/2024
Diebold Nixdorf – CWE-427: Uncontrolled Search Path Element
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Analysis
by VulDB Data Team • 10/06/2024
The Diebold Nixdorf vulnerability classified as CWE-427 represents a critical security flaw in the search path element handling within their software systems. This weakness occurs when applications fail to properly validate or control the directories and paths used during file resolution processes, creating opportunities for attackers to manipulate system behavior through malicious path manipulation.
The technical implementation of this vulnerability stems from improper handling of environment variables and library search paths that applications use when resolving dependencies. When an application searches for required libraries or files across multiple directories without proper validation, it becomes susceptible to path injection attacks where adversaries can place malicious components in directories with higher precedence. This flaw is particularly dangerous because it operates at the foundational level of system security, affecting how software locates and loads essential components.
From an operational perspective, this vulnerability can have severe consequences for Diebold Nixdorf systems that rely on proper library loading mechanisms. Attackers exploiting this weakness could potentially execute arbitrary code by substituting legitimate libraries with malicious versions placed in controlled directories. The impact extends beyond simple code execution to include privilege escalation scenarios where attackers might gain elevated system access through manipulated library paths, particularly affecting point-of-sale systems and ATM networks that these devices typically support.
The vulnerability aligns with several ATT&CK framework techniques including privilege escalation through dynamic link library injection and execution of malicious code via compromised system components. It also relates to CWE-427's broader category of search path vulnerabilities that have been consistently identified as high-risk across various software platforms, making this a well-documented weakness in software security practices.
Mitigation strategies should focus on implementing proper path validation mechanisms, using absolute paths for critical operations, and ensuring that environment variables are properly sanitized. Organizations should conduct thorough security audits of their system search paths and implement least privilege access controls to limit potential impact. Regular application security testing and code reviews specifically targeting path handling functions can help identify and remediate these vulnerabilities before they can be exploited in operational environments.
Industry standards recommend implementing secure coding practices that avoid reliance on potentially compromised search paths, including the use of explicit library loading mechanisms and proper input validation for all path-related operations. The vulnerability demonstrates the importance of adhering to established security guidelines and maintaining robust software development practices that prevent fundamental flaws from reaching production systems.