CVE-2024-31847
📋 TL;DR
A stored cross-site scripting (XSS) vulnerability in Italtel Embrace 1.6.4 allows attackers to inject malicious scripts into GET parameters. Both authenticated and unauthenticated remote attackers can exploit this to execute arbitrary code in victims' browsers. This affects all users of Italtel Embrace 1.6.4.
💻 Affected Systems
- Italtel Embrace
📦 What is this software?
Embrace by Italtel
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal session cookies, perform account takeovers, redirect users to malicious sites, or deploy malware through the vulnerable application.
Likely Case
Attackers will typically steal session cookies to hijack authenticated sessions, potentially gaining unauthorized access to sensitive data or administrative functions.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be rendered harmless as text rather than executable code.
🎯 Exploit Status
XSS vulnerabilities are commonly exploited and require minimal technical skill when details are public.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.gruppotim.it/it/footer/red-team.html
Restart Required: No
Instructions:
1. Check vendor advisory for patch availability. 2. Apply any available security updates. 3. Implement input validation and output encoding if patching is not available.
🔧 Temporary Workarounds
Implement Input Validation
allAdd server-side validation to sanitize all GET parameters before processing.
Enable Content Security Policy
allImplement CSP headers to restrict script execution sources.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in GET parameters
- Disable or restrict access to vulnerable endpoints if possible
🔍 How to Verify
Check if Vulnerable:
Test GET parameters with XSS payloads like <script>alert('XSS')</script> and check if they execute in browser.Check Version:
Check application version in admin interface or configuration files.Verify Fix Applied:
Retest with XSS payloads after implementing fixes to ensure scripts are not executed.📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests containing script tags or JavaScript code
- Multiple failed login attempts from unexpected locations
Network Indicators:
- HTTP requests with suspicious parameters containing script tags or JavaScript
SIEM Query:
source="web_logs" AND (uri="*<script>*" OR uri="*javascript:*")