Vulnerability identifier: #VU1368

Vulnerability risk: Critical

CVSSv3.1: 8.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2007-1938

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ichitaro
Client/Desktop applications / Office applications

Vendor: JustSystems Corporation

Description

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

The vulnerability exists due to boundary error when processing malicious documents. A remote attacker can create a specially crafted document, trick the victim into opening it, cause buffer overflow and execute arbitrary code on vulnerable system.

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

Note: this vulnerability is being actively exploited.

Mitigation
Install patch from vendor's website.

Vulnerable software versions

Ichitaro: 2005 - 2007

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External links
http://www.justsystems.com/jp/info/pd7002.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.