Published:2013/06/18  Last Updated:2013/11/13

JVN#98712361
Ichitaro series vulnerable to arbitrary code execution

Overview

The "Ichitaro" series word processing software, from JustSystems Corporation contains a vulnerability that may allow arbitrary code execution.
This vulnerability differs from other issues that were previously published on JVN.

Products Affected

  • Ichitaro
  • Ichitaro Pro
  • Ichitaro Government
  • Ichitaro Portable
  • Ichitaro Viewer
  • JUST School

For more detailed version information, refer to the developer's website.

Description

The "Ichitaro" series word processing software, from JustSystems Corporation contains a vulnerability that may allow arbitrary code execution.

Impact

When a user opens a specially crafted file, an arbitrary code may be executed.

Solution

Update the software
Apply the appropriate update module according to the information provided by the developer.

Vendor Status

Vendor Link
JustSystems Corporation [JS13002] Vulnerability in Ichitaro may allow arbitrary code execution

References

  1. IPA
    Security Alert for Vulnerability in the "Ichitaro" series that may allow arbitrary code execution (JVN#98712361)

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2013.06.18

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity expertise and/or luck required (guessing correctly in medium-sized space, kernel expertise)
  • Low-Mid

Description of each analysis measures

Credit

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2013-3644
JVN iPedia JVNDB-2013-000058

Update History

2013/11/13
Information under the section "References" was added.