CVE-2025-58431
📋 TL;DR
This vulnerability in ZimaOS allows any user with localhost access to read arbitrary files as the root user through the /v2_1/files/file/download endpoint. It affects ZimaOS version 1.4.1 and earlier, potentially exposing sensitive system files. The risk is highest for systems with multiple local users or services that can access localhost.
💻 Affected Systems
- ZimaOS
📦 What is this software?
Zimaos by Zimaspace
⚠️ Risk & Real-World Impact
Worst Case
An attacker with localhost access could read sensitive system files (e.g., /etc/shadow, SSH keys, configuration files) leading to privilege escalation, credential theft, or complete system compromise.
Likely Case
Malicious local users or compromised services reading sensitive configuration files to gain unauthorized access or escalate privileges.
If Mitigated
With proper network segmentation and access controls, impact is limited to authorized local users only.
🎯 Exploit Status
Exploitation requires localhost access but no authentication to the endpoint. Attackers need to craft requests to the vulnerable endpoint to read arbitrary files.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 1.4.1
Vendor Advisory: https://github.com/IceWhaleTech/ZimaOS/security/advisories/GHSA-vqrw-9v9m-6g87
Restart Required: No
Instructions:
1. Update ZimaOS to the latest version (after 1.4.1). 2. Check the vendor advisory for specific patching instructions. 3. Verify the fix by testing the vulnerable endpoint.
🔧 Temporary Workarounds
Restrict localhost access
allLimit which users and services can access localhost on the affected system
# Use firewall rules to restrict localhost access
iptables -A INPUT -i lo -j DROP
iptables -A INPUT -i lo -m state --state ESTABLISHED,RELATED -j ACCEPT
Disable vulnerable endpoint
allBlock access to the /v2_1/files/file/download endpoint if not needed
# Use web server configuration or firewall to block the endpoint
iptables -A INPUT -p tcp --dport 80 -m string --string "/v2_1/files/file/download" --algo bm -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to limit localhost access to trusted users only.
- Monitor for unusual file access patterns and implement file integrity monitoring on sensitive system files.
🔍 How to Verify
Check if Vulnerable:
Test if you can access the endpoint from localhost: curl -v http://localhost/v2_1/files/file/download?path=/etc/passwdCheck Version:
Check ZimaOS version: cat /etc/os-release | grep VERSIONVerify Fix Applied:
After patching, the same curl command should return an error or be properly restricted.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to /v2_1/files/file/download endpoint
- Multiple file read requests from localhost to sensitive paths
Network Indicators:
- HTTP requests to /v2_1/files/file/download with file path parameters from localhost
SIEM Query:
source="web_access.log" AND uri="/v2_1/files/file/download" AND src_ip="127.0.0.1"