JVN#01775119
Denshi Nyusatsu Check Tool provided by Ministry of Education, Culture, Sports, Science and Technology may insecurely load Dynamic Link Libraries
Overview
Denshi Nyusatsu Check Tool provided by Ministry of Education, Culture, Sports, Science and Technology (MEXT) may insecurely load Dynamic Link Libraries
Products Affected
- EbidSettingChecker.exe（version 1.0.0.0)
Description
Denshi Nyusatsu Check Tool provided by Ministry of Education, Culture, Sports, Science and Technology (MEXT) 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 running the application.
Solution
Update the software
Update to the latest version according to the information provided by the developer.
This vulnerability was addressed in Ver1.1.0.0.
Vendor Status
| Vendor | Link |
| Ministry of Education, Culture, Sports, Science and Technology (MEXT) | E-bidding portal |
References
-
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
| 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) |
| 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
Takashi Yoshikawa of Mitsui Bussan Secure Directions reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
Other Information
| JPCERT Alert |
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| JPCERT Reports |
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| CERT Advisory |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2017-2225 |
| JVN iPedia |
JVNDB-2017-000144 |