CVE-2025-4866
📋 TL;DR
CVE-2025-4866 is a critical code injection vulnerability in weibocom rill-flow's Management Console component. Attackers can remotely execute arbitrary code on affected systems, potentially compromising the entire application server. Organizations using rill-flow version 0.1.18 are affected.
💻 Affected Systems
- weibocom rill-flow
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal sensitive data, install malware, pivot to other systems, and maintain persistent access.
Likely Case
Remote code execution leading to data theft, service disruption, and potential lateral movement within the network.
If Mitigated
Limited impact with proper network segmentation, strong authentication, and input validation controls in place.
🎯 Exploit Status
Exploit details are publicly disclosed in GitHub issues, making weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: unknown
Vendor Advisory: https://github.com/weibocom/rill-flow/issues/102
Restart Required: Yes
Instructions:
1. Monitor GitHub repository for patches. 2. Apply patch when available. 3. Restart rill-flow service. 4. Verify fix implementation.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to rill-flow Management Console using firewall rules
iptables -A INPUT -p tcp --dport [rill-flow-port] -s [trusted-ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [rill-flow-port] -j DROP
Disable Management Console
allTemporarily disable the vulnerable Management Console component
Edit rill-flow configuration to disable management console
🧯 If You Can't Patch
- Implement strict network segmentation to isolate rill-flow instances
- Deploy web application firewall (WAF) with code injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check rill-flow version and verify if Management Console is accessible on networkCheck Version:
Check rill-flow configuration files or package manager for version informationVerify Fix Applied:
Test for code injection attempts after implementing controls and verify they are blocked📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns
- Suspicious HTTP requests to Management Console endpoints
- Error logs containing injection attempts
Network Indicators:
- Unexpected outbound connections from rill-flow server
- Traffic patterns indicating code execution
SIEM Query:
source="rill-flow" AND ("code injection" OR "command execution" OR suspicious HTTP methods)