JVN#99737748
AppCheck may insecurely invoke an executable file
Overview
AppCheck and its installer may insecurely invoke an executable file.
Products Affected
- AppCheck prior to Version 2.0.1.15
- AppCheck Pro prior to Version 2.0.1.15
Description
AppCheck provided by JIRANSOFT JAPAN, INC. is an anti-ransomware software. AppCheck and its installer contains an issue with the search path for executable files, which may lead to insecurely invoke an executable file (CWE-427).
Impact
Arbitrary code may be executed with the privilege of the user running the AppCheck or the installer.
Solution
Use the latest installer
For installation or re-installation, use the latest installer according to the information provided by the developer.
Apply the Patch
According to the developer, the appropriate patch is applied automatically.
The version will become 2.0.1.15 or later after the patch is applied. The version number is displayed at the right lower corner of the startup screen.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| JIRANSOFT JAPAN, INC. | Vulnerable | 2017/06/07 | JIRANSOFT JAPAN, INC. website |
References
-
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
| 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 executable file prepared by an attacker in a specific folder.
Credit
Takashi Yoshikawa of Mitsui Bussan Secure Directions, Inc. 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-2017-2214 |
| JVN iPedia |
JVNDB-2017-000125 |