CVE-2022-45115 in Ichitaro 2022
Summary
by MITRE • 04/05/2023
A buffer overflow vulnerability exists in the Attribute Arena functionality of Ichitaro 2022 1.0.1.57600. A specially crafted document can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
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Analysis
by VulDB Data Team • 04/06/2023
The buffer overflow vulnerability identified as CVE-2022-45115 resides within the Attribute Arena functionality of Ichitaro 2022 version 1.0.1.57600, representing a critical security flaw that can be exploited through crafted malicious documents. This vulnerability falls under the CWE-121 buffer overflow category, specifically manifesting as a classic stack-based buffer overflow that occurs when the application fails to properly validate input data length before copying it into fixed-size buffers. The Attribute Arena component is responsible for managing document attributes and formatting information, making it a prime target for exploitation since it processes user-supplied data during document parsing operations.
The technical implementation of this vulnerability allows an attacker to craft a malicious document that, when opened by an affected version of Ichitaro, triggers memory corruption through improper bounds checking during attribute processing. The flaw occurs when the application attempts to copy attribute data into insufficiently sized memory buffers without adequate validation of the source data length. This creates an exploitable condition where arbitrary data can overwrite adjacent memory locations, potentially leading to code execution or application crash. The vulnerability is particularly concerning because it operates at the document parsing level, meaning that simply opening a malicious file can trigger the exploit without requiring additional user interaction or elevated privileges.
From an operational perspective, this vulnerability presents significant risk to organizations that rely on Ichitaro for document processing, as it can be leveraged for remote code execution through social engineering attacks or automated document delivery mechanisms. The attack surface is broad since any user who opens a malicious document containing crafted attribute data could be compromised, making this a particularly dangerous flaw in enterprise environments where document sharing is common. The vulnerability aligns with ATT&CK technique T1203 (Exploitation for Client Execution) and could potentially enable further attacks through privilege escalation or lateral movement if successful exploitation occurs. Organizations utilizing this software are at risk of data breaches, system compromise, and potential full network infiltration if attackers successfully exploit this vulnerability.
Mitigation strategies for CVE-2022-45115 should prioritize immediate patching of affected systems with the vendor-provided security updates. Organizations should implement strict document validation policies that prevent opening of untrusted documents, particularly those from unknown sources or external parties. Network-based protections such as email filtering and web application firewalls can help reduce the likelihood of malicious documents reaching end users. Additionally, security awareness training should emphasize the dangers of opening unexpected document attachments, and system administrators should monitor for suspicious document handling activities. The vulnerability demonstrates the importance of input validation and memory safety practices, aligning with security best practices outlined in NIST SP 800-160 and ISO/IEC 27001 standards for secure software development lifecycle implementation.