CVE-2023-46222
📋 TL;DR
This critical vulnerability in the Mobile Device Server allows attackers to send specially crafted packets that cause memory corruption, potentially leading to remote code execution or denial of service. Systems running vulnerable versions of the affected software are at risk, particularly those exposed to untrusted networks.
💻 Affected Systems
- Wavelink Avalanche Mobile Device Server
📦 What is this software?
Avalanche by Ivanti
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution with full system compromise, allowing attacker to execute arbitrary code with the privileges of the Mobile Device Server process.
Likely Case
Denial of Service causing the Mobile Device Server to crash, disrupting mobile device management services.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
The vulnerability requires sending specially crafted packets to the Mobile Device Server, which is a network service. No authentication is required for exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.2
Vendor Advisory: https://download.wavelink.com/Files/avalanche_v6.4.2_release_notes.txt
Restart Required: Yes
Instructions:
1. Download Avalanche version 6.4.2 from Wavelink. 2. Backup current configuration. 3. Run the installer to upgrade to version 6.4.2. 4. Restart the Mobile Device Server service.
🔧 Temporary Workarounds
Network Segmentation
allRestrict network access to the Mobile Device Server to only trusted hosts and networks
Firewall Rules
allImplement firewall rules to block untrusted access to the Mobile Device Server port
🧯 If You Can't Patch
- Implement strict network access controls to limit which systems can communicate with the Mobile Device Server
- Monitor for unusual network traffic patterns or connection attempts to the Mobile Device Server
🔍 How to Verify
Check if Vulnerable:
Check the Avalanche version in the administration console or by examining the installed software version. If version is below 6.4.2, the system is vulnerable.Check Version:
Check via Avalanche administration console or Windows Programs and Features for installed versionVerify Fix Applied:
After patching, verify the version shows 6.4.2 or higher in the administration console or installed programs list.📡 Detection & Monitoring
Log Indicators:
- Unusual connection attempts to Mobile Device Server
- Mobile Device Server service crashes or restarts
- Memory-related errors in application logs
Network Indicators:
- Unusual packet patterns sent to Mobile Device Server port
- Traffic from unexpected sources to the Mobile Device Server
SIEM Query:
source="MobileDeviceServer" AND (event_type="crash" OR event_type="memory_error" OR event_type="connection_attempt")