CVE-2024-25000
📋 TL;DR
This path traversal vulnerability in Ivanti Avalanche's web component allows authenticated remote attackers to execute arbitrary commands with SYSTEM privileges. It affects Ivanti Avalanche versions before 6.4.3. Attackers can achieve full system compromise through directory traversal techniques.
💻 Affected Systems
- Ivanti Avalanche
📦 What is this software?
Avalanche by Ivanti
⚠️ Risk & Real-World Impact
Worst Case
Complete system takeover with SYSTEM privileges, enabling installation of persistent malware, data exfiltration, and lateral movement across the network.
Likely Case
Attackers gain SYSTEM-level command execution, allowing them to steal credentials, deploy ransomware, or create backdoors on affected systems.
If Mitigated
With proper network segmentation and access controls, impact is limited to the isolated Avalanche server, though SYSTEM compromise remains severe.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once credentials are obtained. Path traversal to command execution is well-documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.3
Vendor Advisory: https://forums.ivanti.com/s/article/Avalanche-6-4-3-Security-Hardening-and-CVEs-addressed?language=en_US
Restart Required: Yes
Instructions:
1. Download Ivanti Avalanche 6.4.3 from the Ivanti support portal. 2. Backup current configuration and data. 3. Run the installer to upgrade to version 6.4.3. 4. Restart the Avalanche service or server as prompted.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to Avalanche web interface to trusted IP addresses only
Authentication Hardening
allImplement multi-factor authentication and strong password policies for Avalanche accounts
🧯 If You Can't Patch
- Implement strict network access controls to limit Avalanche web interface access to essential personnel only
- Monitor for suspicious authentication attempts and file system access patterns on Avalanche servers
🔍 How to Verify
Check if Vulnerable:
Check the Avalanche version in the web interface under Help > About. If version is below 6.4.3, the system is vulnerable.Check Version:
In Avalanche web interface: Navigate to Help > About to view versionVerify Fix Applied:
After patching, verify the version shows 6.4.3 or higher in the web interface. Test that path traversal attempts are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual file path access patterns in web logs
- Multiple failed authentication attempts followed by successful login
- Suspicious command execution events in Windows Event Logs
Network Indicators:
- Unusual outbound connections from Avalanche server
- Traffic patterns indicating file enumeration attempts
SIEM Query:
source="avalanche_logs" AND (path="..\\" OR path="../" OR cmd="powershell" OR cmd="cmd.exe")