[Japanese]

JVNDB-2018-000073

Installer of ChatWork Desktop App for Windows may insecurely load Dynamic Link Libraries

Overview

Installer of ChatWork Desktop App for Windows provided by ChatWork Co,. LTD. contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

Hamasaki Hiroki 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


ChatWork Co,. LTD.
  • ChatWork Desktop APP for Windows 2.3.0 and earlier

Impact

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

[Use the latest installer]
Use the latest installer according to the information provided by the developer.
Also when executing the installer, be sure to check there are no suspicious files in the directory where the installer resides.

Note that this vulnerability affects the installer only, thus users who have already installed ChatWork Desktop App for Windows do not need to re-install the software.
Vendor Information

ChatWork Co,. LTD.
CWE (What is CWE?)

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

  1. CVE-2018-0648
References

  1. JVN : JVNTA#91240916
  2. JVN : JVN#39171169
Revision History

  • [2018/07/23]
      Web page was published