AppCheck may insecurely invoke an executable file


AppCheck provided by JIRANSOFT JAPAN, INC. is an anti-ransomware software. AppCheck and its installer contains an issue with the search path for executable files, which may lead to insecurely invoke an executable file (CWE-427).

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?)

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

  • AppCheck prior to Version
  • AppCheck Pro prior to Version


Arbitrary code may be executed with the privilege of the user running the AppCheck or the installer.

[Use the latest installer]
For installation or re-installation, use the latest installer according to the information provided by the developer.

[Apply the Patch]
According to the developer, the appropriate patch is applied automatically.
The version will become or later after the patch is applied. The version number is displayed at the right lower corner of the startup screen.
Vendor Information

CWE (What is CWE?)

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

  1. CVE-2017-2214

  1. JVN : JVN#99737748
  2. JVN : JVNTA#91240916
  3. National Vulnerability Database (NVD) : CVE-2017-2214
Revision History

  • [2017/06/07]
      Web page was published
      References : Content was added