CVE-2024-31966
📋 TL;DR
This vulnerability allows authenticated attackers with administrative privileges on affected Mitel SIP phones to conduct argument injection attacks due to insufficient parameter sanitization. Successful exploitation could lead to sensitive information disclosure, system configuration modification, or arbitrary command execution. Organizations using Mitel 6800/6900 Series SIP phones and 6970 Conference Units are affected.
💻 Affected Systems
- Mitel 6800 Series SIP Phones
- Mitel 6900 Series SIP Phones
- Mitel 6900w Series SIP Phone
- Mitel 6970 Conference Unit
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
An attacker with administrative credentials could execute arbitrary commands on the device, potentially gaining full control, accessing sensitive call data, or using the device as a pivot point into the network.
Likely Case
An insider threat or compromised admin account could modify phone configurations, disrupt service, or access call logs and sensitive information stored on the devices.
If Mitigated
With proper access controls and network segmentation, impact would be limited to the affected phone device only, preventing lateral movement.
🎯 Exploit Status
Exploitation requires administrative credentials but the vulnerability itself is straightforward argument injection once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Mitel advisory for specific fixed versions per product line
Vendor Advisory: https://www.mitel.com/support/security-advisories/mitel-product-security-advisory-24-0009
Restart Required: Yes
Instructions:
1. Review Mitel Security Advisory 24-0009. 2. Identify affected devices in your environment. 3. Download and apply firmware updates from Mitel support portal. 4. Reboot affected devices after update. 5. Verify firmware version post-update.
🔧 Temporary Workarounds
Restrict Administrative Access
allLimit administrative access to Mitel phone web interfaces to only necessary personnel using network ACLs or firewall rules.
Network Segmentation
allPlace Mitel phones on isolated VLANs separate from critical network segments to limit potential lateral movement.
🧯 If You Can't Patch
- Implement strict access controls to limit administrative access to phone web interfaces
- Monitor network traffic to/from Mitel phones for unusual administrative activity
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via phone web interface (Settings > System Information) or physical device menuCheck Version:
Via web interface: Navigate to http://[phone-ip]/ or check physical device menu under System InformationVerify Fix Applied:
Verify firmware version is above affected ranges: 6800/6900 > 6.3 SP3 HF4, 6900w > 6.3.3, 6970 > 5.1.1 SP8📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts to phone web interface
- Unusual configuration changes to phone settings
- Administrative login from unexpected IP addresses
Network Indicators:
- HTTP POST requests to phone admin interfaces with unusual parameters
- Traffic patterns suggesting command injection attempts
SIEM Query:
source="mitel-phone" AND (event_type="admin_login" OR event_type="config_change") AND user="admin"