CVE-2024-45248 in Multi-DNC
Summary
by MITRE • 10/06/2024
Multi-DNC – CWE-35: Path Traversal: '.../...//'
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Analysis
by VulDB Data Team • 07/27/2026
Path traversal vulnerabilities represent one of the most fundamental and persistent threats in software security, where attackers exploit improper input validation to access files or directories outside the intended scope. The specific vulnerability described under Multi-DNC with CWE-35 occurs when a system fails to properly sanitize directory path inputs, allowing malicious actors to manipulate file paths through sequences like '.../...//' that appear to navigate up directory structures. This particular implementation flaw enables attackers to bypass normal access controls and potentially gain unauthorized access to sensitive files, directories, or even system resources.
The technical mechanism behind this vulnerability involves the improper handling of path normalization routines within the affected system. When a system processes file paths containing sequences such as '.../...//', it should properly resolve these references to their canonical form while maintaining strict boundaries around allowed directories. However, in vulnerable implementations, the system fails to adequately sanitize or normalize these paths, allowing attackers to construct malicious path sequences that traverse beyond intended directory boundaries. This flaw typically occurs in applications that dynamically construct file paths based on user input without proper validation or sanitization mechanisms.
The operational impact of such vulnerabilities can be severe and multifaceted across different security domains. Attackers can leverage this weakness to access configuration files, database files, source code repositories, or system binaries that should remain protected. In web applications, this could lead to information disclosure, remote code execution, or complete system compromise depending on the application's permissions and underlying architecture. The vulnerability aligns with ATT&CK technique T1083 (File and Directory Discovery) and can facilitate broader attack chains including credential theft, privilege escalation, or lateral movement within compromised environments. Organizations using affected systems face potential regulatory compliance violations, data breaches, and reputational damage when such vulnerabilities are exploited.
Mitigation strategies for this vulnerability require comprehensive input validation and proper path sanitization mechanisms. Systems should implement strict path normalization routines that resolve all directory traversal sequences to their canonical forms while maintaining explicit boundaries around allowed directories. The implementation should follow security best practices such as those outlined in the OWASP Top Ten and NIST SP 800-53, ensuring that all user-supplied path inputs are validated against a whitelist of acceptable patterns. Additionally, applications should employ proper access controls, utilize secure coding practices, and implement robust logging mechanisms to detect potential exploitation attempts. Regular security testing including static analysis, dynamic application security testing, and penetration testing should be conducted to identify and remediate similar vulnerabilities across the entire software ecosystem.