CVE-2022-27826
📋 TL;DR
This vulnerability in Samsung's SemSuspendDialogInfo component allows attackers to bypass validation checks and launch unauthorized activities on affected devices. It affects Samsung mobile devices running Android with the vulnerable component prior to the April 2022 security update. Attackers could potentially execute arbitrary activities without proper user consent.
💻 Affected Systems
- Samsung mobile devices
📦 What is this software?
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to execute arbitrary activities, potentially leading to data theft, privilege escalation, or installation of malicious applications.
Likely Case
Unauthorized activity execution that could lead to phishing attacks, data leakage, or limited privilege escalation within the device's application sandbox.
If Mitigated
Minimal impact if patched, as the vulnerability requires local access and specific conditions to exploit.
🎯 Exploit Status
Requires local access or malicious app installation. No public exploit code identified in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SMR Apr-2022 Release 1
Vendor Advisory: https://security.samsungmobile.com/securityUpdate.smsb?year=2022&month=4
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > Software update. 2. Download and install April 2022 security update. 3. Restart device after installation completes.
🔧 Temporary Workarounds
Disable unknown sources
androidPrevent installation of apps from unknown sources to reduce attack surface
Use app permissions carefully
androidReview and restrict app permissions, especially for activities and intents
🧯 If You Can't Patch
- Restrict physical access to vulnerable devices
- Implement mobile device management (MDM) to control app installations and permissions
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Software information. If patch level is earlier than April 1, 2022, device is vulnerable.Check Version:
Settings > About phone > Software information > Android security patch levelVerify Fix Applied:
Verify security patch level shows 'April 1, 2022' or later in Settings > About phone > Software information.📡 Detection & Monitoring
Log Indicators:
- Unusual activity launches in system logs
- Suspicious intent broadcasts related to SemSuspendDialogInfo
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable for typical mobile device scenarios