[Japanese]

JVNDB-2017-000083

The installer of The Public Certification Service for Individuals "The JPKI user's software" may insecurely load Dynamic Link Libraries

Overview

The installer of The Public Certification Service for Individuals "The JPKI user's software" provided by Japan Agency for Local Authority Information Systems (J-LIS) contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.

Note that this vulnerability is different from JVN#91002412.

Eiji James Yoshida of Security Professionals Network Inc. and Takashi Yoshikawa of Mitsui Bussan Secure Directions, Inc. 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]
  • Access Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
Affected Products

Installers of the following "The JPKI user's software" versions that were available until April 27, 2017, are affected:

Japan Agency for Local Authority Information Systems
  • The Public Certification Service for Individuals "The JPKI user's software" (for Windows 7 and later) Ver3.1 and earlier
  • The Public Certification Service for Individuals "The JPKI user's software" (for Windows Vista)
  • The Public Certification Service for Individuals "The JPKI user's software" Ver2.6 and earlier

Impact

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

[Use the latest installer of The Public Certification Service for Individuals "The JPKI user's software"]
Use the latest installer of The Public Certification Service for Individuals "The JPKI user's software", according to the information provided by J-LIS.

Note that The Public Certification Service for Individuals "The JPKI user's software (for Windows Vista)" and the software Ver2.6 are no longer being developed or maintained.
Vendor Information

Japan Agency for Local Authority Information Systems
CWE (What is CWE?)

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

  1. CVE-2017-2157
References

  1. JVN : JVN#39605485
Revision History

[2017/05/09]
  Web page was published