CVE-2025-58432
📋 TL;DR
This vulnerability allows any user with localhost access to upload files as root on ZimaOS systems. It affects all versions up to 1.4.1, enabling privilege escalation and potential system compromise. Users of ZimaOS on Zima devices or x86-64 systems with UEFI are impacted.
💻 Affected Systems
- ZimaOS
📦 What is this software?
Zimaos by Zimaspace
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover via root-level file upload leading to remote code execution, data theft, or ransomware deployment.
Likely Case
Local privilege escalation allowing attackers to gain root access and install backdoors or malware.
If Mitigated
Limited impact if proper network segmentation and access controls prevent localhost access from unauthorized users.
🎯 Exploit Status
Exploitation requires localhost access but is straightforward once that access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.4.1
Vendor Advisory: https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-3gp9-43rg-xrcc
Restart Required: Yes
Instructions:
1. Update ZimaOS to version after 1.4.1. 2. Restart the system. 3. Verify the /v2_1/files/file/uploadV2 endpoint no longer allows root file uploads from any localhost user.
🔧 Temporary Workarounds
Restrict localhost access
linuxImplement firewall rules to restrict localhost access to authorized users only.
iptables -A INPUT -i lo -s 127.0.0.1 -j DROP
iptables -A INPUT -i lo -j ACCEPT
Disable vulnerable endpoint
linuxBlock or disable the /v2_1/files/file/uploadV2 endpoint if not needed.
systemctl stop zimaos-service
Edit configuration to remove endpoint
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ZimaOS systems from untrusted networks.
- Deploy host-based intrusion detection systems to monitor for unauthorized file uploads.
🔍 How to Verify
Check if Vulnerable:
Check ZimaOS version: if version ≤ 1.4.1, system is vulnerable. Test localhost access to /v2_1/files/file/uploadV2 endpoint.Check Version:
cat /etc/os-release | grep VERSIONVerify Fix Applied:
After update, confirm version > 1.4.1 and test that file uploads from localhost no longer execute as root.📡 Detection & Monitoring
Log Indicators:
- Unusual file upload activity in ZimaOS logs
- Root privilege escalation attempts in system logs
Network Indicators:
- Unexpected connections to localhost on ZimaOS service ports
- File upload requests to /v2_1/files/file/uploadV2
SIEM Query:
source="zimaos.log" AND ("uploadV2" OR "file/upload")