[Japanese]

JVNDB-2017-000108

Installer of Tera Term may insecurely load Dynamic Link Libraries

Overview

The installer of Tera Term provided by TeraTerm Project contains an issue with the DLL search path, which may lead to insecurely load 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


TeraTerm Project
  • The installer of Tera Term 4.94 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.
Users who already have installed Tera Term do not need to re-install the application, because this issue affects the installer only.
Vendor Information

TeraTerm Project
CWE (What is CWE?)

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

  1. CVE-2017-2193
References

  1. JVN : JVN#06770361
  2. JVN : JVNTA#91240916
  3. National Vulnerability Database (NVD) : CVE-2017-2193
Revision History

  • [2017/06/01]
      Web page was published
    [2018/01/24]
      References : Content was added

Date Public2017/06/01
Date First Published2017/06/01
Date Last Updated2018/01/24