CVE-2022-30755
📋 TL;DR
This vulnerability allows attackers to bypass password confirmation in Samsung's AppLock feature by exploiting implicit intent hijacking. It affects Samsung mobile devices running AppLock before the July 2022 security update. Attackers could potentially access locked apps without authentication.
💻 Affected Systems
- Samsung AppLock
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete bypass of app locking protection, allowing unauthorized access to sensitive applications and data on compromised devices.
Likely Case
Local attacker with physical access or malicious app could bypass AppLock to access protected applications.
If Mitigated
No impact if patched or if AppLock is not used on the device.
🎯 Exploit Status
Requires local access or malicious app installation. Exploits Android implicit intent mechanism.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SMR Jul-2022 Release 1
Vendor Advisory: https://security.samsungmobile.com/securityUpdate.smsb?year=2022&month=7
Restart Required: Yes
Instructions:
1. Go to Settings > Software update on Samsung device. 2. Download and install July 2022 security update. 3. Restart device after installation completes.
🔧 Temporary Workarounds
Disable AppLock
androidTemporarily disable AppLock feature until patch can be applied
Use alternative app locker
androidInstall and use third-party app locking application with proper security controls
🧯 If You Can't Patch
- Disable AppLock feature entirely
- Implement device-level security controls like full disk encryption and strong device passcodes
🔍 How to Verify
Check if Vulnerable:
Check if device has AppLock enabled and security patch level is earlier than July 2022Check Version:
Settings > About phone > Software information > Android security patch levelVerify Fix Applied:
Verify security patch level shows July 2022 or later in Settings > About phone > Software information📡 Detection & Monitoring
Log Indicators:
- Unusual app access patterns
- Failed AppLock bypass attempts in system logs
Network Indicators:
- No network indicators - local attack only
SIEM Query:
Not applicable - local device vulnerability