Published:2017/05/25  Last Updated:2017/05/25

JVN#75514460
Installer of electronic tendering and bid opening system provided by Acquisition, Technology & Logistics Agency may insecurely load Dynamic Link Libraries

Overview

Installer of electronic tendering and bid opening system provided by Acquisition, Technology & Logistics Agency may insecurely load Dynamic Link Libraries.

Products Affected

  • Installer of electronic tendering and bid opening system

Description

Installer of electronic tendering and bid opening system provided by Acquisition, Technology & Logistics Agency contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.

Impact

This vulnerability can be exploited when the following condition is met. If this vulnerability is exploited, arbitrary code may be executed with the privilege of the user invoking the installer.

  • A user is tricked into placing a malicious DLL file prepared by an attacker in a specific folder.

Solution

Use the latest installer
Use the latest installer according to the information provided by the developer.
Users who already have built the bidding environment by using the installer are not affected by this vulnerability.

Vendor Status

Vendor Link
Acquisition, Technology & Logistics Agency Regarding the electronic bidding (Important notice)

References

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

Eili Masami of Tachibana Lab. 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-2017-2178
JVN iPedia JVNDB-2017-000100