JVN#87403477
Application and self-extracting archive containing the application of "FLET'S v4 / v6 address selection tool" may insecurely load Dynamic Link Libraries
Overview
Application and self-extracting archive containing the application of "FLET'S v4 / v6 address selection tool" provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION may insecurely load Dynamic Link Libraries.
Products Affected
- FLET'S v4 / v6 address selection tool
Description
Application and self-extracting archive containing the application of "FLET'S v4 / v6 address selection tool" provided by NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION 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 invoking the application or the self-extracting archive.
Solution
Do not use "FLET'S v4 / v6 address selection tool"
Distribution and support of "FLET'S v4 / v6 address selection tool" was ended as of 2018 February 7.
Stop using "FLET'S v4 / v6 address selection tool".
If "FLET'S v4 / v6 address selection tool" obtained from the website before 2018 February 7 resides in your computer and has not yet been installed, do not install it. Delete the executable file immediately.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION | Vulnerable | 2018/02/13 | NIPPON TELEGRAPH AND TELEPHONE WEST CORPORATION website |
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
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-2018-0516 |
| JVN iPedia |
JVNDB-2018-000014 |