Published:2018/07/24  Last Updated:2018/07/24

JVN#41452671
The installers of multiple Canon IT Solutions Inc. software programs may insecurely load Dynamic Link Libraries

Overview

The installers of multiple software programs provided by Canon IT Solutions Inc. may insecurely load Dynamic Link Libraries.

Products Affected

  • ESET Smart Security Premium
  • ESET Internet Security
  • ESET Smart Security
  • ESET NOD32 Antivirus
  • DESlock+ Pro
  • CompuSec (all programs except packaged ones)
All installers with the digital timestamps before "July 10, 2018" are affected.

Description

The installers of multiple software programs provided by Canon IT Solutions Inc. contain 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

Use the latest installer
Use the latest installers 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. Users who have already installed the program(s) are not affected.

Vendor Status

Vendor Status Last Update Vendor Notes
Canon IT Solutions Inc. Vulnerable 2018/07/24 Canon IT Solutions Inc. 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

Yuji Tounai of NTT Communications Corporation 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-2018-0649
JVN iPedia JVNDB-2018-000083