JVN#24087303
Installer of Houkokusyo Sakusei Shien Tool provided by Ministry of the Environment may insecurely load Dynamic Link Libraries
Overview
Installer of Houkokusyo Sakusei Shien Tool provided by Ministry of the Environment may insecurely load Dynamic Link Libraries.
Products Affected
- Installer of Houkokusyo Sakusei Shien Tool ver3.03(For the first installation) (The version which was available on the website from 2017 May 31 to 2017 June 12)
- Installer of Houkokusyo Sakusei Shien Tool ver3.02(For the first installation) (The version which was available on the website from 2017 April 4 to 2017 May 18)
- Installer of Houkokusyo Sakusei Shien Tool ver2.0 and later(For the first installation) (The versions which were available on the website prior to 2017 April 4)
Description
Installer of Houkokusyo Sakusei Shien Tool provided by Ministry of the Environment contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.
Impact
Arbitrary code may be executed with the privileges of the running application.
Solution
Use the latest installer
The user who downloaded Houkokusyo Sakusei Shien Tool（Ver2.0 - 3.03) before 2017 June 12 should delete it immediately. When installing Houkokusyo Sakusei Shien Tool, be sure to download Houkokusyo Sakusei Shien Tool(Ver3.04) from the website and use the latest installer.
According to the developer, it is recommended for the users to execute virus scan software with the latest pattern files applied.
Note that this vulnerability affects the installer only, thus users who have already installed Houkokusyo Sakusei Shien Tool do not need to re-install the newer version (Ver3.04)
For more information, refer to the information provided by the developer.
Vendor Status
References
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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
Eili Masami of Tachibana Lab. and BlackWingCat of Pink Flying Whale 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-2017-2209 |
| JVN iPedia |
JVNDB-2017-000119 |
Update History
- 2017/06/13
- Information under [Product Affected] and [Solution] was modified.
- 2017/08/02
- Information under [Products Affected] and [Solution] was modified, and [Credit] was updated.