Published:2021/10/08 Last Updated:2021/10/08
JVN#89126639
Nike App fails to restrict custom URL schemes properly
Overview
Nike App fails to restrict custom URL schemes properly.
Products Affected
- Nike App for Android versions prior to 2.177
- Nike App for iOS versions prior to 2.177.1
Description
Nike App by Nike, Inc. provides the function to access a requested URL using Custom URL Scheme.
The app does not restrict access to the function properly (CWE-939) which may be exploited to direct the app to access any sites.
Impact
A remote attacker may lead a user to access an arbitrary website via the vulnerable app. As a result, the user may fall victim to the social engineering attack.
Solution
Update the Application
Update the application to the latest version according to the information provided by the developer.
The developer has released the following versions:
- Nike App for Android version 2.177
- Nike App for iOS version 2.177.1
Vendor Status
| Vendor | Link |
| Nike, Inc. | Nike - Google Play |
| Nike - App Store |
References
JPCERT/CC Addendum
Vulnerability Analysis by JPCERT/CC
CVSS v3
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Base Score:
4.3
| 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) |
CVSS v2
AV:N/AC:M/Au:N/C:N/I:P/A:N
Base Score:
4.3
| 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
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-2021-20834 |
| JVN iPedia |
JVNDB-2021-000089 |