CVE-2024-28803
📋 TL;DR
This cross-site scripting (XSS) vulnerability in Italtel's i-MCS NFV software allows unauthenticated remote attackers to inject malicious scripts or HTML via HTTP/POST parameters. This affects organizations using Italtel's NFV solution version 12.1.0-20211215, potentially compromising user sessions and data.
💻 Affected Systems
- Italtel i-MCS NFV
📦 What is this software?
I Mcs Nfv by Italtel
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, hijack user sessions, deface the web interface, or redirect users to malicious sites, potentially leading to full system compromise.
Likely Case
Attackers would typically steal session cookies or credentials to gain unauthorized access to the NFV management interface, potentially modifying network configurations.
If Mitigated
With proper input validation and output encoding, the attack would be prevented, though the vulnerable endpoint remains exposed.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity, especially with unauthenticated access. No public exploit code found in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified
Vendor Advisory: https://www.gruppotim.it/it/footer/red-team.html
Restart Required: No
Instructions:
1. Contact Italtel support for patch information. 2. Check the vendor advisory for updates. 3. Apply any available patches following vendor instructions.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to filter malicious POST requests.
Input Validation
allImplement server-side input validation to sanitize POST parameters.
🧯 If You Can't Patch
- Isolate the i-MCS NFV management interface behind a VPN or internal network only.
- Implement strict Content Security Policy (CSP) headers to mitigate script execution.
🔍 How to Verify
Check if Vulnerable:
Test POST parameters for XSS by injecting script payloads and observing if they execute in the browser.Check Version:
Check the software version via the web interface or system documentation; specific command not provided.Verify Fix Applied:
Verify that injected scripts no longer execute and that input is properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests with script tags or JavaScript in parameters
- Multiple failed login attempts following suspicious POSTs
Network Indicators:
- HTTP POST requests containing <script> tags or JavaScript code to the NFV management interface
SIEM Query:
source="web_logs" AND (method="POST" AND (url="*i-mcs*" OR url="*nfv*") AND (param="*<script>*" OR param="*javascript:*"))