CVE-2025-20658
📋 TL;DR
This CVE describes a permission bypass vulnerability in DA (likely a MediaTek component) that allows local privilege escalation. Attackers with physical access to affected devices can gain elevated privileges without user interaction. This primarily affects devices using vulnerable MediaTek chipsets.
💻 Affected Systems
- MediaTek DA component (exact product names unspecified in CVE)
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Mt2718 by Mediatek
Mt6781 by Mediatek
Mt6789 by Mediatek
Mt6835 by Mediatek
Mt6855 by Mediatek
Mt6878 by Mediatek
Mt6879 by Mediatek
Mt6886 by Mediatek
Mt6895 by Mediatek
Mt6897 by Mediatek
Mt6983 by Mediatek
Mt6985 by Mediatek
Mt6989 by Mediatek
Mt8196 by Mediatek
Mt8673 by Mediatek
Mt8676 by Mediatek
Mt8678 by Mediatek
Mt8781 by Mediatek
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to install persistent malware, access sensitive data, or modify system integrity.
Likely Case
Local attacker gains administrative/system privileges to bypass security controls and access restricted data.
If Mitigated
With proper physical security controls, risk is limited to authorized personnel with device access.
🎯 Exploit Status
No execution privileges needed, but physical access is required. Logic error suggests straightforward exploitation once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch ID: ALPS09474894
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/April-2025
Restart Required: Yes
Instructions:
1. Check device manufacturer for firmware updates. 2. Apply MediaTek security patch ALPS09474894. 3. Reboot device after patch installation. 4. Verify patch application through version checking.
🔧 Temporary Workarounds
Physical Security Controls
allImplement strict physical access controls to prevent unauthorized device access
Device Encryption
allEnable full device encryption to protect data if device is physically compromised
🧯 If You Can't Patch
- Implement strict physical security controls and device tracking
- Isolate affected devices from sensitive networks and data
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against MediaTek security bulletin. Look for patch ALPS09474894 in applied patches.Check Version:
Device-specific commands vary by manufacturer. Typically: 'getprop ro.build.fingerprint' or check Settings > About Phone > Build Number on Android devices.Verify Fix Applied:
Verify patch ALPS09474894 is listed in installed security patches. Check device firmware version is updated.📡 Detection & Monitoring
Log Indicators:
- Unexpected privilege escalation events
- DA component access logs showing permission bypass
Network Indicators:
- None - local exploitation only
SIEM Query:
Search for privilege escalation events from DA component or unexpected root/system access