Published:2018/11/09  Last Updated:2018/11/09

JVN#15709478
The installer of Windows10 Fall Creators Update Modify module for Security Measures tool may insecurely load Dynamic Link Libraries

Overview

The installer of Windows10 Fall Creators Update Modify module for Security Measures tool provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION may insecurely load Dynamic Link Libraries.

Products Affected

  • Windows10 Fall Creators Update Modify module for Security Measures tool

Description

The installer of Windows10 Fall Creators Update Modify module for Security Measures tool provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION  contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries (CWE-427).

Impact

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

Solution

Do not use Windows10 Fall Creators Update Modify module
The developer states that Windows10 Fall Creators Update Modify module was a temporary module to help update the older version of Security Measures tool appropriately, and it is no longer necessary since the latest version of Security Measures tool contains the module itself into it.
For details, refer to the information provided by the developer.

Vendor Status

Vendor Status Last Update Vendor Notes
NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION Vulnerable 2018/11/09 NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION website

References

  1. Japan Vulnerability Notes JVNTA#91240916
    Insecure DLL Loading and Command Execution Issues on Many Windows Application Programs

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

CVSS v3 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score: 7.8
Attack Vector(AV) Physical (P) Local (L) Adjacent (A) Network (N)
Attack Complexity(AC) High (H) Low (L)
Privileges Required(PR) High (H) Low (L) None (N)
User Interaction(UI) Required (R) None (N)
Scope(S) Unchanged (U) Changed (C)
Confidentiality Impact(C) None (N) Low (L) High (H)
Integrity Impact(I) None (N) Low (L) High (H)
Availability Impact(A) None (N) Low (L) High (H)
CVSS v2 AV:N/AC:M/Au:N/C:P/I:P/A:P
Base Score: 6.8
Access Vector(AV) Local (L) Adjacent Network (A) Network (N)
Access Complexity(AC) High (H) Medium (M) Low (L)
Authentication(Au) Multiple (M) Single (S) None (N)
Confidentiality Impact(C) None (N) Partial (P) Complete (C)
Integrity Impact(I) None (N) Partial (P) Complete (C)
Availability Impact(A) None (N) Partial (P) Complete (C)

Comment

This analysis assumes that the user is tricked into placing a malicious DLL file prepared by an attacker in a specific folder.

Credit

Tomohisa Hasegawa of Canon IT Solutions Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2018-16177
JVN iPedia JVNDB-2018-000118