CVE-2025-22457
📋 TL;DR
A stack-based buffer overflow vulnerability in Ivanti Connect Secure, Policy Secure, and ZTA Gateways allows remote unauthenticated attackers to execute arbitrary code on affected systems. This affects organizations using these Ivanti products before specific patched versions. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- Ivanti Connect Secure
- Ivanti Policy Secure
- Ivanti ZTA Gateways
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining root/admin privileges, establishing persistent access, and pivoting to internal networks.
Likely Case
Remote code execution leading to data theft, ransomware deployment, or use as a foothold for further attacks.
If Mitigated
Attack blocked at perimeter with proper patching and network segmentation limiting lateral movement.
🎯 Exploit Status
CISA has added this to its Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Connect Secure 22.7R2.6, Policy Secure 22.7R1.4, ZTA Gateways 22.8R2.2
Vendor Advisory: https://forums.ivanti.com/s/article/April-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-CVE-2025-22457
Restart Required: Yes
Instructions:
1. Download the appropriate patch from Ivanti support portal. 2. Backup current configuration. 3. Apply patch via Ivanti appliance admin interface. 4. Reboot the appliance. 5. Verify patch installation and functionality.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to Ivanti appliances to only trusted IP addresses using firewall rules.
Disable Unnecessary Services
allDisable any unnecessary services or interfaces on the Ivanti appliances to reduce attack surface.
🧯 If You Can't Patch
- Immediately isolate affected systems from internet access and place behind strict firewall rules.
- Implement network monitoring and intrusion detection specifically for exploit attempts against this CVE.
🔍 How to Verify
Check if Vulnerable:
Check the appliance version in the Ivanti admin interface under System > Maintenance > Version Information.Check Version:
ssh admin@ivanti-appliance 'show version' or check via web admin interfaceVerify Fix Applied:
Verify the version number matches or exceeds the patched versions listed in the affected systems section.📡 Detection & Monitoring
Log Indicators:
- Unusual process creation, unexpected network connections from appliance, authentication failures from appliance
Network Indicators:
- Unusual traffic patterns to/from Ivanti appliances, exploit-specific payloads in network traffic
SIEM Query:
source="ivanti_appliance" AND (event_type="process_creation" OR event_type="network_connection") AND severity=HIGH