CVE-2024-39124
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in Roundup's classhelpers (_generic.help.html) allows attackers to inject malicious scripts into web pages. It affects all Roundup installations before version 2.4.0. Attackers could steal session cookies, redirect users, or perform actions on behalf of authenticated users.
💻 Affected Systems
- Roundup Issue Tracker
📦 What is this software?
Roundup by Roundup Tracker
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator session cookies, gain full administrative access to the Roundup instance, and potentially compromise the entire tracking system and connected infrastructure.
Likely Case
Attackers steal user session cookies to access private issue data, modify tickets, or perform unauthorized actions within the tracking system.
If Mitigated
With proper input validation and output encoding, malicious scripts are neutralized before execution, preventing any impact.
🎯 Exploit Status
XSS vulnerabilities typically have low exploitation complexity, but this requires user interaction or social engineering to trigger.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.0
Vendor Advisory: https://www.roundup-tracker.org/docs/security.html#cve-announcements
Restart Required: Yes
Instructions:
1. Backup your Roundup instance and database. 2. Upgrade to Roundup 2.4.0 or later using pip: 'pip install --upgrade roundup'. 3. Restart the Roundup web server. 4. Verify the upgrade completed successfully.
🔧 Temporary Workarounds
Input Sanitization
allImplement strict input validation and output encoding for all user-supplied data in classhelpers.
Content Security Policy
allImplement a strict Content Security Policy header to restrict script execution sources.
🧯 If You Can't Patch
- Implement a Web Application Firewall (WAF) with XSS protection rules
- Disable or restrict access to vulnerable classhelpers if not essential
🔍 How to Verify
Check if Vulnerable:
Check Roundup version: 'python -c "import roundup; print(roundup.__version__)"' - if version is less than 2.4.0, you are vulnerable.Check Version:
python -c "import roundup; print(roundup.__version__)"Verify Fix Applied:
After upgrading, verify version is 2.4.0 or higher using the same command and test XSS payloads are properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual script tags or JavaScript in HTTP requests
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Suspicious outbound connections after visiting Roundup pages
- Unexpected data exfiltration patterns
SIEM Query:
source="web_server_logs" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=") AND uri="*roundup*"