CVE-2025-3698
📋 TL;DR
An interface exposure vulnerability in the CarlCare mobile application allows unauthorized access to sensitive application components. This could lead to information leakage of user data stored or processed by the app. All users of the vulnerable CarlCare app versions are affected.
💻 Affected Systems
- Transsion CarlCare mobile application
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of user data including personal information, device details, and potentially authentication tokens stored within the app's exposed interfaces.
Likely Case
Unauthorized access to sensitive app data and functionality, potentially exposing user information and device details to malicious actors.
If Mitigated
Limited exposure with proper app sandboxing and interface protection, but some data leakage may still occur.
🎯 Exploit Status
Interface exposure vulnerabilities typically require local access to the device or malicious app installation, but exploitation complexity is generally low once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in references, but vendor has released security updates
Vendor Advisory: https://security.tecno.com/SRC/securityUpdates
Restart Required: Yes
Instructions:
1. Update CarlCare app through Google Play Store
2. Ensure device is running latest security patches
3. Restart device after update
4. Verify app version is updated
🔧 Temporary Workarounds
Disable or remove CarlCare app
androidTemporarily disable or uninstall the vulnerable CarlCare application until patched version is available
adb shell pm disable-user com.transsion.carlcare
adb uninstall com.transsion.carlcare
Restrict app permissions
androidLimit app permissions to minimum required functionality
adb shell pm revoke com.transsion.carlcare android.permission.*
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement mobile device management (MDM) controls to monitor and restrict app behavior
🔍 How to Verify
Check if Vulnerable:
Check if CarlCare app is installed and version is older than patched release. Use: adb shell dumpsys package com.transsion.carlcare | grep versionNameCheck Version:
adb shell dumpsys package com.transsion.carlcare | grep versionNameVerify Fix Applied:
Verify app has been updated to latest version from Google Play Store and check for security update notifications📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to CarlCare app interfaces
- Unexpected app data access patterns
- Security permission violations
Network Indicators:
- Unusual outbound connections from CarlCare app
- Data exfiltration patterns from mobile device
SIEM Query:
source="android_logs" app="com.transsion.carlcare" (event_type="permission_violation" OR event_type="unauthorized_access")