CVE-2024-12871
📋 TL;DR
This Cross-Site Scripting (XSS) vulnerability in infiniflow/ragflow version 0.12.0 allows attackers to upload malicious PDF files that execute JavaScript when viewed. This affects all users of vulnerable Ragflow instances, potentially compromising their sessions and sensitive data.
💻 Affected Systems
- infiniflow/ragflow
📦 What is this software?
Ragflow by Infiniflow
⚠️ Risk & Real-World Impact
Worst Case
Complete account takeover, data exfiltration of all knowledge base content, and lateral movement within the application infrastructure.
Likely Case
Session hijacking leading to unauthorized access to the victim's knowledge base and potential data theft.
If Mitigated
Limited impact with proper input validation and output encoding, potentially only affecting the viewing user's session.
🎯 Exploit Status
Exploitation requires user interaction (viewing the malicious PDF) and upload access to the knowledge base.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 0.12.1 or later
Vendor Advisory: https://huntr.com/bounties/7903945c-2839-4dd5-9d40-9ef47fe53118
Restart Required: Yes
Instructions:
1. Update Ragflow to version 0.12.1 or later. 2. Restart the Ragflow service. 3. Verify the update was successful.
🔧 Temporary Workarounds
Disable PDF uploads
allTemporarily disable PDF file upload functionality in Ragflow configuration
Modify Ragflow configuration to restrict file uploads to non-PDF formats
Implement WAF rules
allAdd web application firewall rules to block malicious PDF uploads
Configure WAF to inspect PDF uploads for XSS payloads
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to prevent script execution
- Enable file upload scanning and validation for all user-uploaded content
🔍 How to Verify
Check if Vulnerable:
Check if running Ragflow version 0.12.0 and test PDF upload functionality for XSS payload executionCheck Version:
Check Ragflow version in application interface or configuration filesVerify Fix Applied:
Verify version is 0.12.1 or later and test that malicious PDF uploads no longer execute JavaScript📡 Detection & Monitoring
Log Indicators:
- Unusual PDF upload patterns
- Large PDF file uploads
- Multiple failed upload attempts
Network Indicators:
- PDF uploads containing JavaScript patterns
- Suspicious file uploads to knowledge base endpoints
SIEM Query:
source="ragflow" AND (event="file_upload" AND file_type="pdf") AND size>100KB