[Japanese]

JVNDB-2018-000004

The installer of "FLET'S VIRUS CLEAR Easy Setup & Application Tool" and "FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool" may insecurely load Dynamic Link Libraries

Overview

The installer of "FLET'S VIRUS CLEAR Easy Setup & Application Tool" and "FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool" provided by NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

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


NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION
  • FLET'S VIRUS CLEAR Easy Setup & Application Tool ver.11 and earlier versions
  • FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool ver.11 and earlier versions

Impact

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

[Use the latest installer]
This vulnerability has been already addressed in the latest version (ver.12) released in 2018 March 28.
When installing "FLET'S VIRUS CLEAR Easy Setup & Application Tool" and/or "FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool", use the latest installer according to the information provided by the developer.
If the old version of "FLET'S VIRUS CLEAR Easy Setup & Application Tool" and/or "FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool" obtained from the website before 2017 March 28 resides in your computer, delete it immediately.

Note that this vulnerability affects the installer only, thus users who have already installed "FLET'S VIRUS CLEAR Easy Setup & Application Tool" and/or "FLET'S VIRUS CLEAR v6 Easy Setup & Application Tool" do not need to re-install the software using the latest installer.

For details, refer to the information provided by the developer.
Vendor Information

NIPPON TELEGRAPH AND TELEPHONE EAST CORPORATION
CWE (What is CWE?)

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

  1. CVE-2018-0507
References

  1. JVN : JVN#26255241
Revision History

  • [2018/01/22]
      Web page was published