CVE-2018-14788 in Alpha5 Smart Loader
Summary
by MITRE
Fuji Electric Alpha5 Smart Loader Versions 3.7 and prior. A buffer overflow information disclosure vulnerability occurs when parsing certain file types.
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Analysis
by VulDB Data Team • 03/28/2020
The vulnerability identified as CVE-2018-14788 affects Fuji Electric Alpha5 Smart Loader versions 3.7 and earlier, representing a critical buffer overflow condition that enables information disclosure when processing specific file formats. This vulnerability resides within the file parsing mechanism of the smart loader software, which is designed to handle various data formats for industrial automation and control systems. The affected system operates within industrial environments where secure data handling is paramount for operational continuity and safety.
The technical flaw manifests as a classic buffer overflow condition during file parsing operations, specifically when the software encounters certain malformed or specially crafted file types. This vulnerability stems from inadequate input validation and bounds checking within the parsing routines, allowing an attacker to manipulate the buffer allocation and potentially disclose sensitive information from the application memory. The flaw operates at the application layer and can be exploited through carefully constructed input files that trigger the overflow condition, leading to unauthorized information disclosure.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can potentially expose sensitive operational data, configuration parameters, or system memory contents that could aid in further attacks. In industrial control environments where Fuji Electric Alpha5 Smart Loader systems are deployed, such information disclosure could compromise the integrity of control processes, potentially leading to operational disruptions or even safety hazards. The vulnerability affects systems where the software processes external data files, making it particularly dangerous in environments with untrusted file sources.
Mitigation strategies for CVE-2018-14788 should include immediate application of vendor patches and updates to versions 3.8 or later where the buffer overflow has been addressed through proper input validation and memory management. Organizations should implement network segmentation to limit access to affected systems and establish robust file validation procedures for all incoming data. Additionally, monitoring systems should be configured to detect unusual file processing patterns that might indicate exploitation attempts. This vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and could potentially map to ATT&CK technique T1059 for execution through file parsing mechanisms. Regular security assessments and vulnerability management programs should include verification of patch compliance for industrial control system components to prevent similar vulnerabilities from compromising operational technology environments.