CVE-2005-3484 in NeroNET
Summary
by MITRE
Directory traversal vulnerability in NeroNET 1.2.0.2 and earlier allows remote attackers to read arbitrary files with certain file extensions (such as ZIP, AVI, JPG, TXT, and HTML) via ".." and hex-encoded (1) slash "/" ("%2f") or (2) backslash "\" ("%5c") sequences.
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Analysis
by VulDB Data Team • 07/12/2018
The directory traversal vulnerability identified in NeroNET 1.2.0.2 and earlier versions represents a critical security flaw that enables remote attackers to access arbitrary files on the affected system. This vulnerability stems from inadequate input validation within the application's file handling mechanisms, specifically when processing file paths that contain directory traversal sequences. The flaw allows attackers to bypass normal access controls and retrieve files that should otherwise remain protected, potentially exposing sensitive data and system information.
The technical implementation of this vulnerability exploits the way the NeroNET application processes file path references containing directory traversal sequences. Attackers can manipulate file requests by incorporating sequences such as ".." combined with hex-encoded forward slashes "%2f" or backslashes "%5c" to navigate beyond the intended directory boundaries. This allows the application to interpret these sequences as legitimate path navigation commands rather than malicious input, resulting in unauthorized file access. The vulnerability specifically affects certain file extensions including ZIP archives, AVI video files, JPG images, TXT text documents, and HTML web pages, making it particularly dangerous as these formats often contain sensitive information or system data.
From an operational perspective, this vulnerability presents significant risks to organizations using affected NeroNET versions, as it can lead to unauthorized data access, potential information disclosure, and system compromise. The impact extends beyond simple file reading, as attackers may be able to access configuration files, user data, system logs, or other sensitive resources stored on the same server. The vulnerability's remote nature means attackers do not require local system access or credentials to exploit it, making it particularly dangerous in networked environments where the application is exposed to external traffic. This type of vulnerability directly aligns with CWE-22 - Improper Limiting of a Pathname to a Restricted Directory and is categorized under the broader ATT&CK technique T1083 - File and Directory Discovery.
Security mitigation strategies for this vulnerability should prioritize immediate patching of affected NeroNET installations to version 1.2.0.3 or later, which contains the necessary fixes for proper input validation. Organizations should implement network segmentation to limit access to affected systems and deploy web application firewalls that can detect and block malicious path traversal attempts. Additionally, system administrators should conduct thorough security assessments to identify other potentially vulnerable applications and implement proper input sanitization techniques. Regular vulnerability scanning and security monitoring should be maintained to detect similar issues in other software components, as directory traversal vulnerabilities remain a common attack vector in web applications and network services. The remediation process should also include reviewing and implementing proper access controls and file permission settings to minimize the impact of any successful exploitation attempts.