CVE-2024-28026
📋 TL;DR
This CVE describes three authenticated OS command injection vulnerabilities in MC Technologies MC LR Router's web interface. An attacker with valid credentials can execute arbitrary commands on the router by sending specially crafted HTTP requests, potentially leading to full system compromise. Only MC Technologies MC LR Router version 2.10.5 is affected.
💻 Affected Systems
- MC Technologies MC LR Router
📦 What is this software?
Mc Lr Router Firmware by Mc Technologies
⚠️ Risk & Real-World Impact
Worst Case
Complete router takeover, lateral movement to connected networks, data exfiltration, and persistent backdoor installation.
Likely Case
Router configuration manipulation, network traffic interception, denial of service, and credential harvesting.
If Mitigated
Limited impact if strong authentication controls and network segmentation prevent attacker access.
🎯 Exploit Status
Exploitation requires authentication but is straightforward once credentials are obtained; no public exploit code available yet.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: No
Instructions:
Contact MC Technologies for patch information; monitor vendor communications for updates.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to router web interface to trusted networks only.
Strong Authentication
allEnforce complex passwords and consider multi-factor authentication if supported.
🧯 If You Can't Patch
- Isolate router on dedicated VLAN with strict firewall rules limiting inbound/outbound traffic.
- Implement network monitoring for unusual HTTP requests to router web interface.
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface or CLI; version 2.10.5 is vulnerable.Check Version:
Check web interface system info page or use vendor-specific CLI command.Verify Fix Applied:
Verify firmware version is updated beyond 2.10.5 when patch becomes available.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing command injection patterns in 'out1' parameter
- Unusual system command execution logs
Network Indicators:
- HTTP POST requests to I/O configuration endpoints with suspicious parameters
SIEM Query:
Search for web logs with 'out1' parameter containing shell metacharacters like ;, |, &, $, or backticks.