JVN#00414047
Studyplus App uses a hard-coded API key for an external service
Overview
Studyplus App uses a hard-coded API key for an external service.
Products Affected
- Studyplus App for Android v6.3.7 and earlier
- Studyplus App for iOS v8.29.0 and earlier
Description
Studyplus App provided by Studyplus Inc. uses a hard-coded API key for an external service (CWE-798).
Impact
API key for an external service may be obtained by analyzing data in the app.
Note that a user is not directly affected by this vulnerability.
Solution
Update the Application
Update the application to the latest version according to the information provided by the developer.
According to the developer, the API key was removed from the latest app.
The vulnerable API key has been inactivated already, therefore information contained in the vulnerable app is no longer obtained or compromised.
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) |
Credit
Ryo Sato of BroadBand Security,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 |
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| CPNI Advisory |
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| TRnotes |
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| CVE |
CVE-2020-5667 |
| JVN iPedia |
JVNDB-2020-000070 |
Update History
- 2023/03/08
- Information under the section [Credit] was updated.