CVE-2017-2277
📋 TL;DR
This vulnerability in Sony WG-C10 wireless storage devices allows attackers to bypass access restrictions and access or modify data on connected external storage drives. It affects all users of WG-C10 devices running firmware version 3.0.79 or earlier. The high CVSS score indicates significant security impact.
💻 Affected Systems
- Sony WG-C10 Wireless Storage
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of all data on connected storage devices, including sensitive files, backups, or media libraries, potentially leading to data theft, ransomware deployment, or data destruction.
Likely Case
Unauthorized access to files stored on connected USB drives or external storage, enabling data exfiltration or tampering with stored content.
If Mitigated
Limited impact if device is isolated from untrusted networks and external storage contains only non-sensitive data.
🎯 Exploit Status
The 'unspecified vectors' description suggests multiple potential attack paths, but no public exploit code has been documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v3.0.80 or later
Vendor Advisory: https://esupport.sony.com/US/p/news-item.pl?news_id=527&mdl=WGC10
Restart Required: Yes
Instructions:
1. Download firmware update from Sony support site. 2. Access WG-C10 web interface. 3. Navigate to firmware update section. 4. Upload and apply the update. 5. Reboot device after completion.
🔧 Temporary Workarounds
Disconnect External Storage
allRemove all USB drives and external storage devices from the WG-C10 to eliminate the attack surface.
Network Isolation
allPlace WG-C10 on isolated network segment with no internet access and restrict access to trusted devices only.
🧯 If You Can't Patch
- Disconnect the WG-C10 from all networks and use only as offline storage device
- Implement strict network access controls and monitor for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Access WG-C10 web interface, navigate to System Information, and check firmware version. If version is 3.0.79 or earlier, device is vulnerable.Check Version:
No CLI command available. Must use web interface at http://[device-ip]/Verify Fix Applied:
After updating, verify firmware version shows 3.0.80 or later in System Information page.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to storage shares
- Multiple failed authentication attempts followed by successful access
- Unexpected file access or modification timestamps
Network Indicators:
- Unusual network traffic to WG-C10 device from unexpected sources
- Protocol anomalies in SMB or other file sharing protocols
SIEM Query:
source="wg-c10-logs" AND (event_type="file_access" AND user="unknown" OR event_type="auth_failure" AND count>5)