CVE-2024-44072
📋 TL;DR
This CVE describes an OS command injection vulnerability in BUFFALO wireless LAN routers and repeaters. An authenticated attacker can execute arbitrary operating system commands by sending specially crafted requests to the management interface. This affects users who have administrative access to these devices.
💻 Affected Systems
- BUFFALO wireless LAN routers
- BUFFALO wireless LAN repeaters
⚠️ 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 device compromise allowing attacker to reconfigure network settings, intercept traffic, install persistent backdoors, or pivot to other internal systems.
Likely Case
Attacker with valid credentials gains full control of the affected router/repeater, potentially modifying network configurations or launching attacks against internal devices.
If Mitigated
With proper network segmentation and access controls, impact is limited to the affected device only.
🎯 Exploit Status
Exploitation requires valid administrative credentials. The vulnerability is in the web management interface where user input is not properly sanitized before being passed to system commands.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched firmware versions
Vendor Advisory: https://www.buffalo.jp/news/detail/20240719-01.html
Restart Required: Yes
Instructions:
1. Visit the BUFFALO support website. 2. Identify your specific router/repeater model. 3. Download the latest firmware version. 4. Log into device management interface. 5. Navigate to firmware update section. 6. Upload and apply the new firmware. 7. Reboot the device.
🔧 Temporary Workarounds
Restrict Management Interface Access
allLimit access to the router's management interface to trusted IP addresses only.
Use Strong Authentication
allEnsure administrative accounts use strong, unique passwords and enable multi-factor authentication if supported.
🧯 If You Can't Patch
- Isolate affected devices in a separate network segment with strict firewall rules
- Disable remote management features and only allow local network access to management interface
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory. Log into management interface and navigate to system information/firmware version page.Check Version:
No CLI command available; check via web interface at System Information or similar section.Verify Fix Applied:
After updating firmware, verify the version matches or exceeds the patched version listed in vendor advisory.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed login attempts followed by successful login and command execution
Network Indicators:
- Unusual outbound connections from router to unexpected destinations
- Changes to router configuration without authorized change requests
SIEM Query:
source="router_logs" AND (event_type="command_execution" OR event_type="config_change") AND user!="authorized_user"