CVE-2022-3085 in Tellus Lite V-Simulator
Summary
by MITRE • 01/19/2023
Fuji Electric Tellus Lite V-Simulator versions 4.0.12.0 and prior are vulnerable to a stack-based buffer overflow which may allow an attacker to execute arbitrary code.
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Analysis
by VulDB Data Team • 01/19/2023
The vulnerability identified as CVE-2022-3085 affects Fuji Electric Tellus Lite V-Simulator software versions 4.0.12.0 and earlier, presenting a critical stack-based buffer overflow condition that could enable remote code execution. This software is utilized for industrial control system simulation and testing environments, making it a potential target for sophisticated cyber attacks. The vulnerability stems from insufficient input validation within the application's handling of user-supplied data, particularly in scenarios involving network communications or file processing. The buffer overflow occurs when the application fails to properly bounds-check data before copying it into a fixed-size stack buffer, creating an exploitable condition where attacker-controlled data can overwrite adjacent memory locations including return addresses and function pointers.
The technical exploitation of this vulnerability follows standard buffer overflow attack patterns where malicious input triggers memory corruption that can be leveraged to redirect program execution flow. Attackers could potentially craft specially formatted input data that when processed by the vulnerable simulator application, causes the stack buffer to overflow and overwrite critical execution metadata. This type of vulnerability maps directly to CWE-121 Stack-based Buffer Overflow, which is classified under the Common Weakness Enumeration framework as a fundamental flaw in memory management practices. The attack vector typically involves network-based exploitation where remote attackers can send malicious payloads to the simulator through its network interfaces, making it particularly dangerous in industrial environments where such systems may be directly exposed to external networks.
The operational impact of this vulnerability extends beyond simple code execution, as it could compromise entire industrial control systems that rely on the simulator for testing and validation purposes. In industrial control environments, such vulnerabilities can lead to significant operational disruptions, safety hazards, and potential physical damage to equipment. The vulnerability affects systems that may be part of critical infrastructure, where unauthorized code execution could result in process manipulation, data corruption, or complete system compromise. Organizations utilizing this software in operational technology environments face heightened risk due to the potential for cascading effects that could impact production processes, security monitoring systems, and overall operational continuity. The vulnerability also represents a potential entry point for attackers seeking to establish persistent access within industrial networks, aligning with tactics described in the MITRE ATT&CK framework under the initial access and execution phases.
Mitigation strategies for CVE-2022-3085 should prioritize immediate software updates from Fuji Electric to the latest available versions that contain patches addressing the buffer overflow condition. Organizations must implement network segmentation to isolate the vulnerable simulator systems from critical operational networks, reducing the attack surface and limiting potential lateral movement. Additional protective measures include deploying network monitoring solutions to detect anomalous traffic patterns that may indicate exploitation attempts, implementing strict input validation controls, and conducting thorough security assessments of industrial control system environments. Security teams should also establish incident response procedures specifically tailored for industrial control system vulnerabilities, ensuring rapid identification and containment of potential exploitation attempts. The vulnerability underscores the importance of maintaining up-to-date security patches in industrial environments where legacy systems may remain operational for extended periods, highlighting the critical need for comprehensive vulnerability management programs in operational technology environments.