[Japanese]

JVNDB-2017-000161

Installer of Douro Kouji Kanseizutou Check Program may insecurely load Dynamic Link Libraries

Overview

Installer of Douro Kouji Kanseizutou Check Program provided by National Institute for Land and Infrastructure Management contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

Eili Masami of Tachibana Lab. and BlackWingCat of Pink Flying Whale reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

Base Metrics: 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial

CVSS V3 Severity:
Base Metrics: 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
Affected Products


Ministry of Land, Infrastructure, Transport and Tourism
  • Douro Kouji Kanseizutou Check Program Ver3.1.2 (cdrw_checker_3.1.2.zip) and earlier

Impact

Arbitrary code may be executed with the privilege of the user invoking the installer.
Solution

[Use the latest installer and apply the workarounds]
Users who downloaded Douro Kouji Kanseizutou Check Program Ver3.1.2 (cdrw_checker_3.1.2.zip) before 2017 July 19 should delete the application immediately.
When installing Douro Kouji Kanseizutou Check Program, be sure to download the latest version of Douro Kouji Kanseizutou Check Program Ver3.1.3 (cdrw_checker_3.1.3.zip) from the website. Also be sure confirming the followings before executing the installer.

* Confirm there is no suspicious file besides "setup.exe" in "setup program" directory which is created when extracting the installer (cdrw_checker_3.1.3.zip)

* Be sure to execute "setup.exe" in "setup program" directory.

Note that this vulnerability affects the installer only, thus users who have already installed Douro Kouji Kanseizutou Check Program do not need to re-install the latest Douro Kouji Kanseizutou Check Program Ver3.1.3 (cdrw_checker_3.1.3.zip).

Vendor Information

Ministry of Land, Infrastructure, Transport and Tourism
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2017-2230
References

  1. JVN : JVN#82120115
  2. JVN : JVNTA#91240916
Revision History

[2017/07/04]
  Web page was published
[2017/08/09]
  Overview was modified
  Affected Products : Product version was modified
  Solution was modified