CVE-2024-41707
📋 TL;DR
This vulnerability allows authenticated Archer Platform users to inject malicious HTML content into the application's data store. When other users access this stored content through their browsers, the malicious code executes in the context of the vulnerable application. This affects Archer Platform 6 versions before the 2024.06 release.
💻 Affected Systems
- Archer Platform
📦 What is this software?
Archer by Archerirm
⚠️ Risk & Real-World Impact
Worst Case
An authenticated attacker could inject persistent cross-site scripting (XSS) payloads that execute when viewed by other users, potentially leading to session hijacking, data theft, or further privilege escalation within the Archer environment.
Likely Case
Authenticated malicious users could inject HTML/JavaScript that steals session cookies or performs unauthorized actions on behalf of victim users who view the compromised content.
If Mitigated
With proper input validation and output encoding controls, the injected content would be sanitized and rendered harmless as plain text rather than executable code.
🎯 Exploit Status
Exploitation requires authenticated access to the Archer Platform. The vulnerability is a classic stored/persistent XSS (CWE-79) that could be exploited through normal application functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Archer Platform 2024.06
Vendor Advisory: https://www.archerirm.community/t5/platform-announcements/archer-update-for-multiple-vulnerabilities/ta-p/739717
Restart Required: Yes
Instructions:
1. Download Archer Platform 2024.06 from official RSA Archer sources. 2. Follow the Archer Platform upgrade documentation. 3. Apply the update to all affected Archer instances. 4. Restart Archer services after patching.
🔧 Temporary Workarounds
Input Validation and Output Encoding
allImplement server-side input validation and proper output encoding for all user-controllable data that gets stored and displayed.
Content Security Policy (CSP)
allImplement a strict Content Security Policy header to mitigate the impact of successful XSS attacks.
🧯 If You Can't Patch
- Implement strict access controls and monitor authenticated user activity for suspicious HTML injection attempts.
- Deploy web application firewalls (WAF) with XSS protection rules and conduct regular security awareness training about XSS risks.
🔍 How to Verify
Check if Vulnerable:
Check Archer Platform version via Archer Control Panel or administrative interface. If version is earlier than 2024.06, the system is vulnerable.Check Version:
Check via Archer administrative interface or consult Archer documentation for version checking procedures.Verify Fix Applied:
After applying Archer Platform 2024.06 update, verify the version shows 2024.06 or later and test HTML injection attempts to confirm they are properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual HTML/JavaScript content in user-submitted data fields
- Multiple failed HTML injection attempts from single user accounts
Network Indicators:
- HTTP requests containing suspicious HTML/JavaScript payloads in POST parameters
SIEM Query:
source="archer_logs" AND (message="*<script>*" OR message="*javascript:*" OR message="*onload=*" OR message="*onerror=*")🔗 References
- https://www.archerirm.community/t5/platform-announcements/announcing-archer-platform-release-2024-06/ta-p/722094
- https://www.archerirm.community/t5/platform-announcements/archer-update-for-multiple-vulnerabilities/ta-p/739717
- https://www.archerirm.community/t5/platform-announcements/announcing-archer-platform-release-2024-06/ta-p/722094
- https://www.archerirm.community/t5/platform-announcements/archer-update-for-multiple-vulnerabilities/ta-p/739717
