CVE-2009-1054 in Ichitaro viewer
Summary
by MITRE
Unspecified vulnerability in JustSystems Ichitaro 13, 2004 through 2008, Lite2, and Ichitaro viewer 5.1.5.0 and earlier allows remote attackers to execute arbitrary code via a crafted file, as exploited in the wild by Trojan.Tarodrop.H in March 2009.
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Analysis
by VulDB Data Team • 07/20/2024
The vulnerability identified as CVE-2009-1054 represents a critical remote code execution flaw affecting multiple versions of JustSystems Ichitaro office suite and viewer applications. This vulnerability was actively exploited in the wild through the Trojan.Tarodrop.H malware campaign in March 2009, demonstrating the severe operational impact that such flaws can have when leveraged by malicious actors. The vulnerability exists within the file processing capabilities of Ichitaro versions 13, 2004 through 2008, as well as Lite2 and Ichitaro viewer 5.1.5.0 and earlier versions, indicating a widespread exposure across the product line.
The technical nature of this vulnerability stems from insufficient input validation and memory corruption issues within the application's file parsing mechanisms. When a user opens a specially crafted malicious file, the application fails to properly handle the malformed data structure, leading to memory corruption that can be exploited to execute arbitrary code with the privileges of the affected user. This type of vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds writes. The exploitation typically occurs through stack or heap buffer overflows that allow attackers to overwrite critical memory locations and redirect program execution flow.
The operational impact of CVE-2009-1054 extends beyond simple code execution, as it provides attackers with persistent access to compromised systems. Once successfully exploited, the malware can establish backdoors, download additional payloads, and maintain long-term presence on infected machines. The attack vector through malicious documents makes this particularly dangerous in enterprise environments where users frequently open office documents from external sources. The vulnerability's exploitation in the wild through Trojan.Tarodrop.H demonstrates how such flaws can be weaponized for targeted attacks against business users, potentially leading to data breaches, system compromise, and lateral movement within networks.
Organizations affected by this vulnerability should implement immediate mitigations including application whitelisting, email filtering to block malicious office documents, and user education about avoiding suspicious attachments. The ATT&CK framework categorizes this type of vulnerability exploitation under T1059 for command and scripting interpreter and T1078 for valid accounts, highlighting the need for layered security approaches. System administrators should also consider implementing network segmentation and monitoring for unusual file access patterns that might indicate exploitation attempts. Regular patching and updating of office applications remains the most effective long-term solution, though the vulnerability's exploitation in 2009 suggests that many systems remained unpatched for extended periods. The incident underscores the importance of vulnerability management programs that can quickly identify and remediate such critical flaws across enterprise environments.