JVN#49343562
Money Forward Apps for Android vulnerability that allows unintended operations
Overview
Money Forward Apps for Android contain a vulnerability where unintended operations may be performed.
Products Affected
The following products provided by Money Forward, Inc.
- Android App Money Forward (prior to v7.18.0)
- Android App Money Forward for The Gunma Bank (prior to v1.2.0)
- Android App Money Forward for SHIGA BANK (prior to v1.2.0)
- Android App Money Forward for SHIZUOKA BANK (prior to v1.4.0)
- Android App Money Forward for SBI Sumishin Net Bank (prior to v1.6.0)
- Android App Money Forward for Tokai Tokyo Securities (prior to v1.4.0)
- Android App Money Forward for THE TOHO BANK (prior to v1.3.0)
- Android App Money Forward for YMFG (prior to v1.5.0)
The following products provided by SOURCENEXT CORPORATION
- Money Forward for AppPass (prior to v7.18.3)
- Money Forward for au SMARTPASS (prior to v7.18.0)
- Money Forward for Chou Houdai (prior to v7.18.3)
Description
Money Forward Apps for Android contain a vulnerability where unintended operations may be performed.
Impact
When a user executes a malicious application, it may perform an unintended operation.
Solution
Update the Application
Update to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| Money Forward, Inc. | Vulnerable | 2016/09/20 | Money Forward, Inc. website |
| Vendor | Link |
| SOURCENEXT CORPORATION | Vulnerabilities in Money Forward Apps for Android Fixed |
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 installing a malicious application.
Credit
Kenta Suefusa, Akinori Konishi and Tomonori Shiomi of Sprout Inc. 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-2016-4838 |
| JVN iPedia |
JVNDB-2016-000161 |