CVE-2024-24456
📋 TL;DR
A buffer overflow vulnerability in Athonet MME allows remote attackers to crash the system by sending a malformed E-RAB Release Command packet. This affects Athonet MME deployments in mobile network infrastructure. The vulnerability requires network access to the MME interface.
💻 Affected Systems
- Athonet MME
⚠️ 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
Complete denial of service for mobile network subscribers served by the affected MME, potentially disrupting voice and data services in the coverage area.
Likely Case
Service disruption requiring MME restart, causing temporary loss of connectivity for subscribers until service is restored.
If Mitigated
Limited impact if MME is behind firewalls with strict network segmentation and packet filtering.
🎯 Exploit Status
Exploitation requires ability to send packets to MME interface; no authentication needed to trigger crash
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check HPE advisory for specific patched versions
Vendor Advisory: https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw04780en_us&docLocale=en_US
Restart Required: Yes
Instructions:
1. Review HPE advisory for affected versions 2. Obtain patched software from vendor 3. Schedule maintenance window 4. Apply patch following vendor instructions 5. Restart MME service
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to MME interfaces to only authorized network elements
Packet Filtering
allImplement firewall rules to filter E-RAB Release Command packets from untrusted sources
🧯 If You Can't Patch
- Implement strict network access controls to limit which systems can communicate with MME interfaces
- Deploy intrusion detection systems to monitor for malformed packet patterns targeting MME
🔍 How to Verify
Check if Vulnerable:
Check MME version against HPE advisory; systems running affected versions are vulnerableCheck Version:
Vendor-specific command; consult Athonet/HPE documentation for version checkingVerify Fix Applied:
Verify MME version is updated to patched version specified in HPE advisory📡 Detection & Monitoring
Log Indicators:
- MME crash logs
- Unexpected service restarts
- Error messages related to E-RAB Release processing
Network Indicators:
- Malformed E-RAB Release Command packets to MME port
- Sudden drop in MME traffic
SIEM Query:
source="MME" AND (event_type="crash" OR event_type="restart") OR packet_type="E-RAB Release" AND malformed=true