CVE-2024-41911
📋 TL;DR
This vulnerability allows cross-site scripting (XSS) attacks against Poly Clariti Manager devices. Attackers can inject malicious scripts into web pages generated by the device, potentially compromising user sessions. Organizations using Poly Clariti Manager firmware up to version 10.10.2.2 are affected.
💻 Affected Systems
- Poly Clariti Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, hijack user sessions, redirect users to malicious sites, or perform actions on behalf of authenticated users.
Likely Case
Attackers inject malicious JavaScript to steal session cookies or credentials from users accessing the management interface.
If Mitigated
With proper input validation and output encoding, the impact is limited to potential UI disruption without code execution.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity once the injection point is identified. Exploitation requires user interaction with malicious content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Firmware version 10.10.2.3 or later
Vendor Advisory: https://support.hp.com/us-en/document/ish_11006770-11006795-16/hpsbpy03959
Restart Required: Yes
Instructions:
1. Download the latest firmware from HP/Poly support portal. 2. Backup current configuration. 3. Upload and install the firmware update via the web interface. 4. Reboot the device after installation completes.
🔧 Temporary Workarounds
Input Validation Filter
allImplement web application firewall rules to filter malicious script patterns in input parameters
Content Security Policy
allImplement strict CSP headers to mitigate XSS impact
🧯 If You Can't Patch
- Restrict network access to Poly Clariti Manager to trusted IP addresses only
- Implement strong authentication and monitor for suspicious activity in access logs
🔍 How to Verify
Check if Vulnerable:
Check firmware version in web interface under System > About. If version is 10.10.2.2 or earlier, the device is vulnerable.Check Version:
No CLI command available. Check via web interface at System > About.Verify Fix Applied:
Verify firmware version is 10.10.2.3 or later in System > About page.📡 Detection & Monitoring
Log Indicators:
- Unusual input patterns in web server logs containing script tags or JavaScript
Network Indicators:
- HTTP requests with suspicious parameters containing script elements
SIEM Query:
source="poly_clariti_logs" AND (http_uri="*<script*" OR http_uri="*javascript:*" OR http_uri="*onload=*" OR http_uri="*onerror=*")