CVE-2024-38655
📋 TL;DR
This vulnerability allows remote authenticated attackers with admin privileges to execute arbitrary code on Ivanti Connect Secure and Policy Secure gateways through argument injection. Organizations using affected versions of these products are at risk of complete system compromise.
💻 Affected Systems
- Ivanti Connect Secure
- Ivanti Policy Secure
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise leading to data exfiltration, lateral movement, ransomware deployment, and persistent backdoor installation.
Likely Case
Attackers gain complete control over the gateway, enabling credential theft, VPN session hijacking, and access to internal networks.
If Mitigated
Limited impact if proper network segmentation, admin account controls, and monitoring are in place to detect exploitation attempts.
🎯 Exploit Status
Exploitation requires admin credentials but is straightforward once authenticated. Similar Ivanti vulnerabilities have been actively exploited in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Connect Secure: 22.7R2.1 or 9.1R18.9; Policy Secure: 22.7R1.1 or 9.1R18.9
Vendor Advisory: https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-ICS-Ivanti-Policy-Secure-IPS-Ivanti-Secure-Access-Client-ISAC-Multiple-CVEs
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Ivanti support portal. 2. Backup current configuration. 3. Apply patch via admin interface. 4. Reboot the appliance. 5. Verify successful update.
🔧 Temporary Workarounds
Restrict Admin Access
allLimit admin account access to trusted IP addresses only and implement multi-factor authentication.
Network Segmentation
allIsolate Ivanti appliances in dedicated network segments with strict firewall rules.
🧯 If You Can't Patch
- Implement strict network access controls to limit admin interface exposure
- Enable detailed logging and monitoring for suspicious admin activities
🔍 How to Verify
Check if Vulnerable:
Check version in admin interface: System > Maintenance > Version InformationCheck Version:
ssh admin@ivanti-appliance 'show version'Verify Fix Applied:
Verify version is equal to or higher than patched versions listed in affected systems📡 Detection & Monitoring
Log Indicators:
- Unusual admin login patterns
- Unexpected command execution in system logs
- Multiple failed admin login attempts
Network Indicators:
- Unusual outbound connections from Ivanti appliance
- Suspicious traffic patterns to/from admin interface
SIEM Query:
source="ivanti*" AND (event_type="admin_login" OR event_type="command_execution") | stats count by src_ip, user