JVN#08868688
The installers of multiple Japan Pension Service software may insecurely load Dynamic Link Libraries
Overview
The installers of multiple Japan Pension Service software may insecurely load Dynamic Link Libraries.
Products Affected
Installers of the following software that were available until October 17, 2016, are affected:
- Specification check program(social insurance) Ver. 9.00 and earlier
- TODOKESHO print program Ver. 5.00 and earlier
- Device data encryption program Ver. 1.00 and earlier
- TODOKESHO creation program Ver. 15.00 and earlier
Description
The installers of multiple Japan Pension Service software contain 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, an 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 installers
Users who are intended to install the software for the first time or to upgrade the software, be sure to use the latest installers.
Vendor Status
| Vendor | Link |
| Japan Pension Service | Specification check program(social insurance) |
| TODOKESHO print program | |
| Device data encryption program | |
| TODOKESHO creation program |
References
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
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 |
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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-2016-7818 |
| JVN iPedia |
JVNDB-2016-000233 |