CVE-2022-48383
📋 TL;DR
CVE-2022-48383 is a missing permission check vulnerability in the srtd service that allows local attackers to escalate privileges without requiring additional execution privileges. This affects systems running vulnerable versions of the srtd service, typically on Unisoc platforms. Attackers can gain elevated privileges from a standard user context.
💻 Affected Systems
- Unisoc srtd service
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise where an attacker gains root/administrator access, installs persistent malware, accesses sensitive data, and pivots to other systems.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, install unauthorized software, modify system configurations, and access restricted resources.
If Mitigated
Limited impact with proper access controls, minimal user privileges, and network segmentation preventing lateral movement.
🎯 Exploit Status
Requires local access to the system. The missing permission check suggests straightforward exploitation once local access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://www.unisoc.com/en_us/secy/announcementDetail/1654776866982133761
Restart Required: Yes
Instructions:
1. Contact device manufacturer for security updates. 2. Apply available firmware/OS updates. 3. Verify srtd service is updated. 4. Reboot device after update.
🔧 Temporary Workarounds
Disable srtd service if not needed
androidStop and disable the vulnerable srtd service to prevent exploitation
adb shell pm disable com.unisoc.srtd
adb shell stop srtd
Restrict service permissions
linuxModify service permissions to limit access if service must remain running
chmod 750 /system/bin/srtd
chown root:system /system/bin/srtd
🧯 If You Can't Patch
- Implement strict access controls and limit local user privileges
- Monitor for unusual privilege escalation attempts and srtd service activity
🔍 How to Verify
Check if Vulnerable:
Check srtd service version and permissions: adb shell dumpsys package com.unisoc.srtd | grep versionCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify updated srtd service version and check for security patches in system updates📡 Detection & Monitoring
Log Indicators:
- Unusual srtd service activity
- Privilege escalation attempts
- Unexpected process execution with elevated privileges
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
process_name:srtd AND (event_type:privilege_escalation OR user_privilege_change)