CVE-2012-4956 in File Reporter
Summary
by MITRE
Heap-based buffer overflow in NFRAgent.exe in Novell File Reporter 1.0.2 allows remote attackers to execute arbitrary code via a large number of VOL elements in an SRS record.
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Analysis
by VulDB Data Team • 04/23/2025
The vulnerability identified as CVE-2012-4956 represents a critical heap-based buffer overflow flaw in NFRAgent.exe, a component of Novell File Reporter version 1.0.2. This vulnerability exists within the processing logic of SRS (Storage Report Schema) records, specifically when handling VOL elements which are used to define volume information within storage reporting structures. The flaw stems from inadequate input validation and bounds checking mechanisms that fail to properly sanitize the number of VOL elements processed during SRS record parsing. When an attacker crafts a malicious SRS record containing an excessive number of VOL elements, the application fails to allocate sufficient memory or properly validate the element count, leading to memory corruption in the heap allocation region.
The technical exploitation of this vulnerability occurs through remote code execution capabilities, as the buffer overflow can be triggered over network connections without requiring authentication. The heap-based nature of the overflow means that memory corruption affects the application's heap management structures, potentially allowing attackers to overwrite critical memory locations including function pointers, return addresses, or other control data structures. This type of vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and represents a significant risk as it can be leveraged to execute arbitrary code with the privileges of the NFRAgent.exe process. The attack vector is particularly concerning because it requires no local access or user interaction, making it suitable for automated exploitation.
The operational impact of this vulnerability extends beyond simple code execution, as it can enable complete system compromise when the NFRAgent.exe process runs with elevated privileges. Storage reporting systems often operate with administrative permissions to access file system metadata and generate comprehensive reports, creating a prime target for attackers seeking persistent access to enterprise environments. The vulnerability affects organizations using Novell File Reporter for storage management and compliance reporting, potentially exposing sensitive data and creating backdoor access points within network infrastructure. This flaw also demonstrates weaknesses in the software's memory management practices and input validation routines that could affect similar components within the Novell ecosystem.
Mitigation strategies for CVE-2012-4956 should prioritize immediate patching of affected Novell File Reporter installations, as this represents a critical security flaw requiring urgent remediation. Organizations should implement network segmentation to limit access to NFRAgent.exe services and consider disabling unnecessary SRS record processing capabilities until patches are deployed. The vulnerability's classification under the ATT&CK framework would place it within the privilege escalation and execution domains, specifically targeting process injection and code injection techniques. Additionally, organizations should monitor for exploitation attempts through network traffic analysis, particularly looking for unusual patterns in SRS record processing or connections to the affected service. Regular security assessments of file reporting systems and proper input validation testing should be implemented to prevent similar vulnerabilities in future deployments.