CVE-2024-31841
📋 TL;DR
CVE-2024-31841 is an input validation vulnerability in Italtel Embrace 1.6.4 web server that allows remote unauthenticated attackers to read arbitrary files on the filesystem. This affects all systems running the vulnerable version of Italtel Embrace software.
💻 Affected Systems
- Italtel Embrace
📦 What is this software?
Embrace by Italtel
⚠️ Risk & Real-World Impact
Worst Case
Attackers could read sensitive system files, configuration files, credentials, and other critical data, potentially leading to full system compromise.
Likely Case
Attackers will read configuration files, logs, and other accessible files to gather intelligence for further attacks.
If Mitigated
With proper network segmentation and access controls, impact is limited to the application server's accessible files.
🎯 Exploit Status
The vulnerability description suggests straightforward exploitation via web requests with malicious input.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.gruppotim.it/it/footer/red-team.html
Restart Required: Yes
Instructions:
1. Check vendor advisory for patch availability. 2. If patch exists, download and apply following vendor instructions. 3. Restart the Italtel Embrace service.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to Italtel Embrace web interface to trusted IPs only.
Use firewall rules to limit access: iptables -A INPUT -p tcp --dport [PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORT] -j DROP
Web Application Firewall
allDeploy WAF with rules to block directory traversal and path manipulation attempts.
🧯 If You Can't Patch
- Isolate the Italtel Embrace server in a separate network segment with strict access controls.
- Implement file system permissions to restrict what files the web server process can read.
🔍 How to Verify
Check if Vulnerable:
Check if Italtel Embrace version is 1.6.4. Attempt to access known files via web interface with path traversal payloads.Check Version:
Check Italtel Embrace web interface or configuration files for version information.Verify Fix Applied:
After applying vendor patch or workarounds, test that path traversal attempts are blocked and return appropriate error responses.📡 Detection & Monitoring
Log Indicators:
- Web server logs showing requests with '../' sequences, encoded path traversal attempts, or unusual file access patterns.
Network Indicators:
- HTTP requests containing path traversal patterns like '../', '..\', or encoded equivalents.
SIEM Query:
source="web_server_logs" AND (uri="*../*" OR uri="*..\\*" OR uri="*%2e%2e%2f*")