CVE-2022-27562
📋 TL;DR
CVE-2022-27562 is an unsafe file upload vulnerability in HCL Domino Volt that allows attackers to upload .html files containing malicious JavaScript. When deployed applications process these files, the JavaScript executes in users' browsers, potentially leading to client-side attacks. This affects organizations using HCL Domino Volt for application development.
💻 Affected Systems
- HCL Domino Volt
📦 What is this software?
Domino Leap by Hcltech
⚠️ Risk & Real-World Impact
Worst Case
Attackers could upload malicious HTML files that execute JavaScript to steal session cookies, perform cross-site request forgery, redirect users to phishing sites, or conduct client-side attacks against application users.
Likely Case
Attackers upload HTML files with malicious JavaScript that executes when users access the uploaded content, potentially leading to session hijacking, data theft, or unauthorized actions on behalf of authenticated users.
If Mitigated
With proper input validation and file type restrictions, the risk is limited to potential file storage abuse without code execution.
🎯 Exploit Status
Exploitation requires ability to upload files to vulnerable applications. The vulnerability is in the default configuration, making exploitation straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.0.6 and later
Vendor Advisory: https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0120722
Restart Required: Yes
Instructions:
1. Download HCL Domino Volt version 1.0.6 or later from HCL's official distribution channels. 2. Follow HCL's upgrade documentation for Domino Volt. 3. Restart the Domino Volt service after installation. 4. Verify the update by checking the version number.
🔧 Temporary Workarounds
Implement custom file type validation
allAdd server-side validation to reject .html file uploads in Domino Volt applications
Implement custom validation logic in application code to check file extensions before processing
Restrict file upload permissions
allLimit which users can upload files to Domino Volt applications
Configure application permissions to restrict file upload capabilities to trusted users only
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict JavaScript execution from uploaded content
- Deploy web application firewall (WAF) rules to block .html file uploads to Domino Volt applications
🔍 How to Verify
Check if Vulnerable:
Check Domino Volt version. If version is earlier than 1.0.6 and the application allows file uploads, it is vulnerable.Check Version:
Check Domino Volt administration interface or configuration files for version informationVerify Fix Applied:
Verify Domino Volt version is 1.0.6 or later and test that .html file uploads are properly rejected.📡 Detection & Monitoring
Log Indicators:
- Multiple .html file upload attempts
- File upload errors related to .html extensions
- Unusual file upload patterns to Domino Volt applications
Network Indicators:
- HTTP POST requests with .html file uploads to Domino Volt endpoints
- Increased file upload traffic to Domino Volt applications
SIEM Query:
source="domino_volt" AND (file_extension=".html" OR file_type="text/html") AND action="upload"