JVN#87655507
CREATE SD official App for Android fails to restrict access permissions
Overview
CREATE SD official App for Android fails to restrict access permissions.
Products Affected
- CREATE SD official App for Android version 1.0.2 and earlier
Description
CREATE SD official App for Android provided by CREATE S・D CO., LTD. implements the function to access a requested URL using an Intent. This function contains an improper access control vulnerability (CWE-284) that may allow the vulnerable App to receive an Intent from an arbitrary App and to access an arbitrary URL requested by an Intent.
Impact
A remote attacker may lead a user to access an arbitrary website via the vulnerable App. As a result, the user may become a victim of a phishing attack.
Solution
Update the Application
Update the application to the latest version according to the information provided by the developer.
Vendor Status
| Vendor | Status | Last Update | Vendor Notes |
|---|---|---|---|
| CREATE S・D CO., LTD. | Vulnerable | 2019/05/10 | CREATE S・D CO., LTD. website |
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 has installed an application which is created to use/operate the vulnerable App.
Credit
Norio Abe 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-2019-5955 |
| JVN iPedia |
JVNDB-2019-000024 |