CVE-2024-36454
📋 TL;DR
A use of uninitialized resource vulnerability in Fujitsu IPCOM EX2 and VE2 series network devices allows attackers to cause denial of service by sending specially crafted packets. This affects devices running firmware V01L07NF0201 and earlier versions. The vulnerability can lead to system reboots or suspension of affected devices.
💻 Affected Systems
- Fujitsu IPCOM EX2 Series
- Fujitsu IPCOM VE2 Series
⚠️ 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
Persistent denial of service attacks could render network devices unavailable, disrupting business operations and network connectivity.
Likely Case
Temporary service disruption causing device reboots or suspension, leading to brief network outages.
If Mitigated
Minimal impact with proper network segmentation and access controls limiting exposure to malicious packets.
🎯 Exploit Status
Exploitation requires sending specially crafted packets to vulnerable devices, which is relatively straightforward for attackers with network access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V01L07NF0202 or later
Vendor Advisory: https://www.fujitsu.com/jp/products/network/support/2024/ipcom-02/
Restart Required: Yes
Instructions:
1. Download latest firmware from Fujitsu support portal. 2. Backup current configuration. 3. Upload and apply firmware update. 4. Reboot device. 5. Verify firmware version.
🔧 Temporary Workarounds
Network Access Control
allRestrict network access to vulnerable devices using firewall rules and network segmentation.
Traffic Filtering
allImplement packet filtering to block suspicious traffic patterns targeting these devices.
🧯 If You Can't Patch
- Isolate vulnerable devices in separate network segments with strict access controls.
- Implement network monitoring and intrusion detection to identify exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Check firmware version via device web interface or CLI. Vulnerable if version is V01L07NF0201 or earlier.Check Version:
Check via device web interface under System Information or use vendor-specific CLI commands.Verify Fix Applied:
Confirm firmware version is V01L07NF0202 or later after applying update.📡 Detection & Monitoring
Log Indicators:
- Unexpected device reboots
- System suspension events
- Connection resets
Network Indicators:
- Unusual packet patterns to device management interfaces
- Spike in malformed packets
SIEM Query:
Search for: device_type="IPCOM" AND (event="reboot" OR event="suspension")