HIBUN Confidential File Decryption program may insecurely load Dynamic Link Libraries


HIBUN Confidential File Decryption program provided by Hitachi Solutions, Ltd. contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

Note that this vulnerability is different from JVN#58909026.

Eili Masami of Tachibana Lab. 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

Hitachi Solutions, Ltd.
  • HIBUN Confidential File Decryption program prior to version


Arbitrary code may be executed with the privileges of the user running HIBUN Confidential File Decryption program.

[Use the latest HIBUN Confidential File Decryption program]
Use the latest HIBUN Confidential File Decryption program according to the information provided by the developer.
Vendor Information

Hitachi Solutions, Ltd.
CWE (What is CWE?)

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

  1. CVE-2017-10865

  1. JVN : JVNTA#91240916
  2. JVN : JVN#55516206
  3. National Vulnerability Database (NVD) : CVE-2017-10865
Revision History

  • [2017/10/11]
      Web page was published
  • [2018/03/07]
      References : Content was added