Zero-day vulnerability in Ichitaro

Stack-based buffer overflow
CVE-2007-6436

Known malware:

Trojan.Tarodrop.F

Vulnerability details

Advisory: SB2007121401 - Buffer overflow in JustSystems Ichitaro

Vulnerable component: Ichitaro

CVE-ID: CVE-2007-6436

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Description:

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in JSGCI.DLL library when processing malicious documents. A remote attacker can create a specially crafted document file, trick the victim into opening it, cause stack-based buffer overflow and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in compromise of vulnerable system.

Note: this vulnerability is being actively exploited.

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