The installers of multiple Japan Pension Service software may insecurely load Dynamic Link Libraries


The installers of multiple Japan Pension Service software contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.

Yuji Tounai of NTT Communications Corporation reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

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
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

Installers of the following software that were available until October 17, 2016, are affected:

Japan Pension Service
  • Specification check program(social insurance) Ver. 9.00 and earlier
  • TODOKESHO print program Ver. 5.00 and earlier
  • TODOKESHO creation program Ver. 15.00 and earlier
  • Device data encryption program Ver. 1.00 and earlier


This vulnerability can be exploited when the following condition is met. If this vulnerability is exploited, an arbitrary code may be executed with the privilege of the user invoking the installer.

* A user is tricked into placing a malicious DLL file prepared by an attacker in a specific folder.

[Use the latest installers]
Users who are intended to install the software for the first time or to upgrade the software, be sure to use the latest installers.
Vendor Information

Japan Pension Service
CWE (What is CWE?)

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

  1. CVE-2016-7818

  1. JVN : JVN#08868688
  2. National Vulnerability Database (NVD) : CVE-2016-7818
Revision History

  • [2016/12/01]
      Web page was published
      References : Content was added