Published:2017/06/08  Last Updated:2017/06/08

JVN#52691241
Multiple installers of the software provided by Geospatial Information Authority of Japan (GSI) may insecurely load Dynamic Link Libraries

Overview

Multiple installers of the software provided by Geospatial Information Authority of Japan (GSI) may insecurely load Dynamic Link Libraries.

Products Affected

The instalers of the following software are affected:

  • PatchJGD  (PatchJGD101.EXE) ver. 1.0.1  [CVE-2017-2210]
  • PatchJGD(Hyoko)  (PatchJGDh101.EXE) ver. 1.0.1  [CVE-2017-2211]
  • TKY2JGD  (TKY2JGD1379.EXE) ver. 1.3.79  [CVE-2017-2212]
  • SemiDynaEXE  (SemiDynaEXE2008.EXE) ver. 1.0.2  [CVE-2017-2213]

Description

Multiple installers of the software provided by Geospatial Information Authority of Japan (GSI) 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 installers.

Solution

Do not use the installers
The developer has stated that the development and support of the software has been discontinued, thus recommends users to stop using the installers.
Users who already have installed the software do not need to re-install the software, because this issue affects the installers only.

References

  1. Japan Vulnerability Note 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

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-2017-2210
CVE-2017-2211
CVE-2017-2212
CVE-2017-2213
JVN iPedia JVNDB-2017-000121
JVNDB-2017-000122
JVNDB-2017-000123
JVNDB-2017-000124