CVE-2024-39436

6.5 MEDIUM

📋 TL;DR

This vulnerability in linkturbonative service allows command injection through improper input validation, enabling local privilege escalation. Attackers with System execution privileges could execute arbitrary commands. This affects systems running the vulnerable linkturbonative service.

💻 Affected Systems

Products:
  • linkturbonative service
Versions: Specific versions not specified in reference
Operating Systems: Android-based systems (Unisoc platforms)
Default Config Vulnerable: ⚠️ Yes
Notes: Requires System execution privileges to exploit, suggesting it's a local service vulnerability.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining root/system-level access and persistent backdoor installation.

🟠

Likely Case

Local privilege escalation allowing attackers to execute commands with elevated privileges they shouldn't have access to.

🟢

If Mitigated

Limited impact with proper input validation and privilege separation in place.

🌐 Internet-Facing: LOW
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local access and System execution privileges. No public exploit code identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Not specified in reference

Vendor Advisory: https://www.unisoc.com/en_us/secy/announcementDetail/1843898270204624897

Restart Required: Yes

Instructions:

1. Check Unisoc security advisory for patch details. 2. Apply vendor-provided firmware/software updates. 3. Restart affected devices.

🔧 Temporary Workarounds

Restrict service permissions

linux

Reduce linkturbonative service privileges to minimum required

chmod 750 /path/to/linkturbonative
chown root:root /path/to/linkturbonative

Disable unnecessary service

linux

Disable linkturbonative service if not required

systemctl disable linkturbonative
killall linkturbonative

🧯 If You Can't Patch

  • Implement strict input validation for all service inputs
  • Apply principle of least privilege to service account

🔍 How to Verify

Check if Vulnerable:

Check if linkturbonative service is running and has System privileges: ps aux | grep linkturbonative

Check Version:

strings /path/to/linkturbonative | grep version

Verify Fix Applied:

Verify service version matches patched version from vendor advisory

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution from linkturbonative process
  • Privilege escalation attempts

Network Indicators:

  • Unexpected outbound connections from linkturbonative service

SIEM Query:

process_name="linkturbonative" AND (cmdline="*;*" OR cmdline="*|*" OR cmdline="*`*")

🔗 References

📤 Share & Export