Q90 Junior Gps Horloge FirmwareOperating system · Tk Star

CVE-2019-20468

CRITICAL · 9.8 CVSS v3.1 Published 2021-02-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in SeTracker2 for TK-Star Q90 Junior GPS horloge 3.1042.9.8656 devices. It has unnecessary permissions such as READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE, and READ_CONTACTS.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

The SeTracker2 GPS watch companion app requests three unnecessary Android permissions (READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE, and READ_CONTACTS) that are not required for its core GPS tracking functionality. These excessive permissions violate the principle of least privilege and create potential for unauthorized data access or exfiltration if the app is compromised.

MitigationReview and remove unnecessary permissions from the AndroidManifest.xml, retaining only permissions required for legitimate GPS tracking features (likely ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION, and INTERNET). Verify functionality remains intact after removal.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Q90 Junior Gps Horloge FirmwareOperating system
Affected:= 3.1042.9.8656

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the SeTracker2 companion app installation
    On the Android device, go to Settings > Apps and search for SeTracker2, or use adb shell pm list packages to list installed packages. Look for packages containing 'setracker' in the name.
    Affected if The SeTracker2 app is installed on the device
  2. Check the Tk Star Q90 Junior GPS watch firmware version
    Connect the GPS watch to the SeTracker2 app and navigate to the device settings within the app. The firmware version is typically displayed under Device Info or Settings > About Device. Alternatively, check the watch itself or consult the device manual for firmware version retrieval.
    Affected if The firmware version is exactly 3.1042.9.8656
  3. Extract and inspect the AndroidManifest.xml
    Use APK extraction tools (such as APK Extractor or adb pull) to obtain the SeTracker2 APK from the device, then use a tool like apktool or AXMLPrinter2 to decompile the AndroidManifest.xml file.
    Affected if The APK cannot be extracted or does not exist on the device
  4. Check for unnecessary permissions in AndroidManifest.xml
    Locate the <uses-permission> tags within the AndroidManifest.xml file. Inspect whether any of the following permissions are declared: android.permission.READ_EXTERNAL_STORAGE, android.permission.WRITE_EXTERNAL_STORAGE, or android.permission.READ_CONTACTS.
    Affected if Any of these three permissions are present in the manifest file

The environment is affected if the SeTracker2 companion app is running with Tk Star Q90 Junior firmware version 3.1042.9.8656 and the AndroidManifest.xml contains READ_EXTERNAL_STORAGE, WRITE_EXTERNAL_STORAGE, or READ_CONTACTS permissions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Review and remove unnecessary permissions from the AndroidManifest.xml, retaining only permissions required for legitimate GPS tracking features (likely ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION, and INTERNET). Verify functionality remains intact after removal.

Fix this in Q90 Junior Gps Horloge Firmware Scoped from the published advisory
  • Consultation3.0 h
  • Implementation2.0 h
  • Testing3.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,770
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-20468 in production — separate from our analysis above.

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What this is

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