CVE-2024-39710

9.1 CRITICAL

📋 TL;DR

This vulnerability allows authenticated administrators to inject malicious arguments into Ivanti Connect Secure and Policy Secure systems, leading to remote code execution. Attackers with admin credentials can execute arbitrary commands on affected appliances. Organizations using vulnerable versions of these Ivanti products are at risk.

💻 Affected Systems

Products:
  • Ivanti Connect Secure
  • Ivanti Policy Secure
Versions: Connect Secure before 22.7R2.1 and 9.1R18.7; Policy Secure before 22.7R1.1
Operating Systems: Ivanti's custom appliance OS
Default Config Vulnerable: ⚠️ Yes
Notes: Requires admin privileges - not exploitable by regular users or unauthenticated attackers.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to install persistent backdoors, steal sensitive data, pivot to internal networks, and disrupt critical VPN/access services.

🟠

Likely Case

Attackers with stolen or compromised admin credentials gain full control of affected appliances, enabling data exfiltration, credential harvesting, and lateral movement.

🟢

If Mitigated

With proper credential protection and network segmentation, impact is limited to the affected appliance with minimal lateral movement potential.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires admin credentials but is straightforward once credentials are obtained. Similar vulnerabilities in Ivanti products have been actively exploited in the wild.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Connect Secure 22.7R2.1 or 9.1R18.7; Policy Secure 22.7R1.1

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 web admin interface. 4. Reboot appliance. 5. Verify patch installation and functionality.

🔧 Temporary Workarounds

Admin Credential Protection

all

Implement strict admin credential management including MFA, strong passwords, and credential rotation.

Network Segmentation

all

Isolate Ivanti appliances from critical internal networks and implement strict firewall rules.

🧯 If You Can't Patch

  • Implement strict network access controls to limit admin interface access to trusted IPs only
  • Enable detailed logging and monitoring for admin account activity and command execution

🔍 How to Verify

Check if Vulnerable:

Check version in web admin interface under Maintenance > System > Version Information

Check Version:

ssh admin@[appliance-ip] 'cat /etc/version'

Verify Fix Applied:

Verify version shows 22.7R2.1 or higher for Connect Secure, or 22.7R1.1 or higher for Policy Secure

📡 Detection & Monitoring

Log Indicators:

  • Unusual admin login patterns
  • Command execution logs with suspicious arguments
  • Multiple failed admin login attempts

Network Indicators:

  • Unexpected outbound connections from Ivanti appliances
  • Traffic to suspicious IPs/domains from appliance

SIEM Query:

source="ivanti_appliance" AND (event_type="admin_login" OR event_type="command_execution") AND user="admin"

🔗 References

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