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Fretello Guitar Lessons
com.fretello.lead · Build 2.7.9
Analysis: complete. Static analysis completed for this build. A grade is not a guarantee of safety. Historical verification does not establish current reachability.
- Grade / score
- F · 0/100
- Finding categories
- 7
- Occurrences
- 14
- Scanned
- 2026-11-03T22:58:01.733Z
- Document issued
- 2026-11-04T01:12:32.889Z
- Historical verifications
- 6
Finding evidence
Open a category to review its occurrences. Printing includes all categories and occurrences.
Amazon S3 bucket reference — confirmed publicly readable · critical · 8 occurrences
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
https://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████.s3.eu-central-1.amazonaws.com/███· Historical verification at scan timehttps://██████████████████████████████████████████.s3.amazonaws.com/███https://████.eu-central-1.amazonaws.com/███
Hardcoded HTTP Basic-auth credentials · high · 1 occurrence
Remove the hard-coded credential from the app package, rotate/revoke it immediately, and move the secret to a backend the app calls with per-user authentication.
CWE-798 · MASVS-STORAGE-1
Basic ••••••:•••••••• (redacted)
Application data is backup-enabled · info · 1 occurrence
Backup is on by default on Android; this manifest states it explicitly. If the app stores sensitive local data, define dataExtractionRules/fullBackupContent to exclude it, or set android:allowBackup=false.
CWE-530 · CWE-312 · MASVS-STORAGE-1 · MASVS-STORAGE-2
android:allowBackup="true"
Firebase Realtime Database reference · low · 1 occurrence
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
https://█████████████.firebaseio.com/███
Google API key (client-shipped; restriction unverified) · low · 1 occurrence
Restrict the API key (application + API restrictions in Google Cloud Console); a client-shipped key is public, so restriction is the control.
CWE-798 · MASVS-STORAGE-1
AIza•••••••• (21–40 chars, redacted)
Exported content provider without permission (third-party library artifact, shared across 427 unrelated developers) · low · 1 occurrence
Set android:exported=false, or require a signature-level android:permission, and scope grantUriPermissions narrowly.
CWE-926 · CWE-284 · MASVS-PLATFORM-1
FacebookContentProvider (exported, no permission)
Firebase Storage bucket reference · low · 1 occurrence
Confirm the bucket/database denies anonymous read (enable auth / storage rules / RLS), then audit its contents for data already exposed while it was open.
CWE-200 · CWE-284 · MASVS-STORAGE-2
████████████
Control coverage
Mapped static evidence does not establish a control pass. Manual assessment remains separate.
| Control | Requirement | Recorded status |
|---|---|---|
| MASVS-STORAGE-1 | The app securely stores sensitive data. | Review signal |
| MASVS-STORAGE-2 | The app prevents leakage of sensitive data. | Historical verification |
| MASVS-CRYPTO-1 | The app employs current strong cryptography and uses it according to best practices. | No static findings · not a pass |
| MASVS-CRYPTO-2 | The app performs key management according to best practices. | No static findings · not a pass |
| MASVS-AUTH-1 | The app uses secure authentication and authorization protocols. | Manual assessment |
| MASVS-AUTH-2 | The app performs local authentication securely. | Manual assessment |
| MASVS-AUTH-3 | The app secures sensitive operations with additional authentication. | Manual assessment |
| MASVS-NETWORK-1 | The app secures all network traffic according to current best practices. | No static findings · not a pass |
| MASVS-NETWORK-2 | The app verifies the identity of the remote endpoint (e.g. certificate pinning). | No static findings · not a pass |
| MASVS-PLATFORM-1 | The app uses IPC mechanisms securely. | Review signal |
| MASVS-PLATFORM-2 | The app uses WebViews securely. | No static findings · not a pass |
| MASVS-PLATFORM-3 | The app uses the user interface securely. | Manual assessment |
| MASVS-CODE-1 | The app requires an up-to-date platform version. | No static findings · not a pass |
| MASVS-CODE-2 | The app has a mechanism for enforcing updates. | Manual assessment |
| MASVS-CODE-3 | The app only uses software components without known vulnerabilities. | No static findings · not a pass |
| MASVS-CODE-4 | The app validates and sanitizes all untrusted inputs and follows secure-coding practice. | No static findings · not a pass |
| MASVS-RESILIENCE-1 | The app validates the integrity of the platform. | Manual assessment |
| MASVS-RESILIENCE-2 | The app implements anti-tampering mechanisms. | Manual assessment |
| MASVS-RESILIENCE-3 | The app implements anti-static-analysis mechanisms. | Manual assessment |
| MASVS-RESILIENCE-4 | The app implements anti-dynamic-analysis techniques. | Manual assessment |
| MASVS-PRIVACY-1 | The app minimizes access to sensitive data and resources. | No static findings · not a pass |
| MASVS-PRIVACY-2 | The app prevents identification of the user. | No static findings · not a pass |
| MASVS-PRIVACY-3 | The app is transparent about data collection and usage. | No static findings · not a pass |
| MASVS-PRIVACY-4 | The app offers user control over their data. | Manual assessment |
Build identity and signature
- Scan ID
- bd3328cf-375c-4d98-a2f3-0a23e3cf79a2
- APK SHA-256
cf314920d21b54b1c6fbc10492b2524ffa3e969e168df3597062412a941f64e3- Capsule SHA-256
ee704ae4ad6002a0a880ee61d998e74205a0490b4e0e41a400faf8a178aa15bd- Signing key
- IE6LeZNX4dAAPLGr
Verify the signed JSON at apk-scanner.com/verify. This printed view is a presentation of the signed record; the JSON is the verification artifact.