CVE-2019-17269
📋 TL;DR
CVE-2019-17269 is a critical remote code execution vulnerability in Intellian Remote Access 3.18 that allows attackers to execute arbitrary operating system commands by injecting shell metacharacters into the Ping Test field. This affects organizations using Intellian satellite communication systems with the vulnerable remote access software. Attackers can gain complete control over affected systems without authentication.
💻 Affected Systems
- Intellian Remote Access
📦 What is this software?
Remote Access by Intelliantech
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install malware, exfiltrate sensitive data, pivot to internal networks, and disrupt satellite communication services.
Likely Case
Attackers gain shell access to the system, potentially installing backdoors, stealing credentials, and using the system as a foothold for further attacks.
If Mitigated
Limited impact if system is isolated, properly segmented, and monitored, though command execution would still be possible.
🎯 Exploit Status
Public exploit details available in referenced blog posts. Simple command injection via ping field makes exploitation trivial for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - No specific patched version information available in public sources
Vendor Advisory: No vendor advisory URL found in provided references
Restart Required: No
Instructions:
1. Contact Intellian support for patch information. 2. Check for updated versions beyond 3.18. 3. Apply any available security updates from vendor.
🔧 Temporary Workarounds
Disable Remote Access Interface
allTemporarily disable the vulnerable web interface until patching is possible
# Specific commands depend on system configuration
# May involve stopping web service or blocking port
Network Segmentation
linuxIsolate affected systems from untrusted networks
# Configure firewall rules to restrict access
# Example: iptables -A INPUT -p tcp --dport [web-port] -s [trusted-ips] -j ACCEPT
# iptables -A INPUT -p tcp --dport [web-port] -j DROP
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the vulnerable interface
- Deploy web application firewall (WAF) with command injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check if running Intellian Remote Access version 3.18. Attempt to access the web interface and look for ping functionality. Test with safe command injection payloads in controlled environment.Check Version:
# Check software version through web interface or system commands
# Exact command depends on installation method and system configurationVerify Fix Applied:
Verify updated to version beyond 3.18 if available. Test that command injection in ping field no longer works. Check vendor documentation for fixed versions.📡 Detection & Monitoring
Log Indicators:
- Unusual commands in web server logs
- Ping requests with shell metacharacters
- Unexpected process execution from web user context
Network Indicators:
- HTTP requests to ping endpoint with suspicious parameters
- Outbound connections from system after ping requests
SIEM Query:
web.url:*ping* AND (web.param:*;* OR web.param:*|* OR web.param:*`* OR web.param:*$(*)