CVE-2024-35285
📋 TL;DR
This vulnerability allows unauthenticated attackers to execute arbitrary commands on Mitel MiCollab systems running vulnerable NuPoint Messenger versions. Attackers can exploit insufficient parameter sanitization to inject malicious commands, potentially gaining full system control. Organizations using Mitel MiCollab with NuPoint Messenger are affected.
💻 Affected Systems
- Mitel MiCollab with NuPoint Messenger
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands with highest privileges, potentially leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Remote code execution leading to unauthorized access, data exfiltration, or lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation and access controls prevent external access to vulnerable systems.
🎯 Exploit Status
The vulnerability requires no authentication and has low exploitation complexity, making weaponization highly likely even without public PoC.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 9.8.0.34 or later
Vendor Advisory: https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-24-0013
Restart Required: Yes
Instructions:
1. Download the latest MiCollab patch from Mitel support portal. 2. Backup current configuration. 3. Apply the patch following Mitel's upgrade documentation. 4. Restart the MiCollab services. 5. Verify successful update.
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to MiCollab systems to only trusted IP addresses and networks.
Use firewall rules to limit access: iptables -A INPUT -p tcp --dport [MiCollab ports] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [MiCollab ports] -j DROP
Application Firewall Rules
allImplement WAF rules to block command injection patterns in HTTP requests.
ModSecurity rule: SecRule ARGS "[\;\|\&\`\$\<\>]" "id:1001,phase:2,deny,status:403,msg:'Command Injection Attempt'"
Add to WAF configuration to block suspicious characters in parameters.
🧯 If You Can't Patch
- Isolate vulnerable systems in a dedicated network segment with strict access controls
- Implement network monitoring and IDS/IPS rules to detect command injection attempts
🔍 How to Verify
Check if Vulnerable:
Check MiCollab version via web interface or SSH: Login to system and check version in admin interface.Check Version:
ssh admin@[mi-collab-ip] 'show version' or check web admin interface at https://[mi-collab-ip]/adminVerify Fix Applied:
Verify version is 9.8.0.34 or later in admin interface and test that command injection attempts are properly sanitized.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Failed authentication attempts followed by command execution patterns
- HTTP requests containing shell metacharacters in parameters
Network Indicators:
- HTTP POST requests to MiCollab endpoints with shell characters in parameters
- Outbound connections from MiCollab to unexpected destinations
SIEM Query:
source="mi-collab-logs" AND ("cmd.exe" OR "/bin/sh" OR "bash" OR "powershell" OR ";" OR "|" OR "&" OR "`")