CVE-2012-4958 in File Reporter
Summary
by MITRE
Directory traversal vulnerability in NFRAgent.exe in Novell File Reporter 1.0.2 allows remote attackers to read arbitrary files via a 126 /FSF/CMD request with a .. (dot dot) in a FILE element of an FSFUI record.
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Analysis
by VulDB Data Team • 09/02/2025
The CVE-2012-4958 vulnerability represents a critical directory traversal flaw in Novell File Reporter's NFRAgent.exe component version 1.0.2. This security weakness stems from inadequate input validation within the file system interface processing mechanism, specifically when handling FSFUI records containing FILE elements. The vulnerability manifests when the system processes a 126 /FSF/CMD request that includes a .. (dot dot) sequence within the FILE element, enabling unauthorized access to files outside the intended directory structure. This directory traversal condition occurs at the application level where the agent fails to properly sanitize or validate file path references before processing them, creating an exploitable condition that bypasses normal access controls. The flaw resides in the agent's file system interaction logic, where it directly interprets user-supplied path components without proper canonicalization or validation checks.
The operational impact of this vulnerability extends beyond simple unauthorized file access, as it provides attackers with the capability to read arbitrary files from the system's file structure. This includes potentially sensitive configuration files, user data, system logs, or even system binaries that should remain protected from external inspection. The vulnerability affects the Novell File Reporter's ability to maintain proper file system isolation, allowing attackers to navigate beyond the designated reporting directories and access files that may contain confidential information or system credentials. The attack vector leverages the FSFUI protocol interface, which is designed for file system operations and reporting functions, making it a legitimate entry point for exploitation. This weakness directly violates the principle of least privilege and demonstrates a fundamental flaw in the application's access control implementation. The vulnerability aligns with CWE-22, which specifically addresses directory traversal or path traversal issues, and represents a classic example of improper input validation leading to unauthorized system access.
Security implications of CVE-2012-4958 extend to potential data breaches and system compromise scenarios, as attackers can leverage this vulnerability to extract sensitive information from the affected system. The flaw enables attackers to potentially access configuration files that may contain database connection strings, user credentials, or other sensitive system parameters. Additionally, the ability to read arbitrary files could facilitate further exploitation attempts, including the discovery of other system vulnerabilities or the extraction of system binaries for analysis. The vulnerability's impact is particularly concerning in enterprise environments where Novell File Reporter is deployed for file monitoring and reporting purposes, as it could provide attackers with insights into organizational file structures and access patterns. This weakness creates opportunities for attackers to map the file system, identify valuable targets, and potentially escalate privileges through the discovery of system-level files or configuration data. The vulnerability also aligns with ATT&CK technique T1083, which covers file and directory discovery, as attackers can use this flaw to enumerate system files and directories beyond normal operational boundaries.
Mitigation strategies for CVE-2012-4958 should focus on implementing proper input validation and sanitization within the NFRAgent.exe component. Organizations should apply the vendor-provided patch or upgrade to a version that addresses this directory traversal vulnerability, as Novell would have released a security update to resolve the issue. Network segmentation and access control measures should be implemented to limit exposure of the affected system to untrusted networks, particularly restricting access to the FSFUI protocol interface. Input validation should be strengthened to reject or sanitize any path components containing .. sequences before processing, ensuring that all file references are properly validated against a whitelist of acceptable paths. Regular security assessments should include testing for similar directory traversal vulnerabilities in other file system components, as this represents a common class of weakness in enterprise file management systems. System monitoring should be enhanced to detect unusual file access patterns that may indicate exploitation attempts, and access logs should be reviewed for evidence of unauthorized file system navigation attempts. The remediation approach should follow security best practices for preventing path traversal attacks, including implementing proper path canonicalization, using secure file access functions, and maintaining strict access controls over file system operations.