CVE-2022-22992
📋 TL;DR
This CVE describes a command injection vulnerability in Western Digital My Cloud devices that allows remote attackers to execute arbitrary system commands. The vulnerability occurs when user input is not properly sanitized before being passed to shell functions. All users of affected Western Digital My Cloud devices are at risk.
💻 Affected Systems
- Western Digital My Cloud devices running My Cloud OS 5
📦 What is this software?
My Cloud Os by Westerndigital
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attacker to install malware, steal data, pivot to internal networks, or use device as part of botnet.
Likely Case
Data theft, ransomware deployment, or device being used for cryptocurrency mining or DDoS attacks.
If Mitigated
Limited impact with proper network segmentation and access controls, though device could still be compromised.
🎯 Exploit Status
Command injection vulnerabilities are typically easy to exploit once the injection point is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: My Cloud OS 5 firmware version 5.19.117
Vendor Advisory: https://www.westerndigital.com/support/product-security/wdc-22002-my-cloud-os5-firmware-5-19-117
Restart Required: Yes
Instructions:
1. Log into My Cloud device web interface. 2. Navigate to Settings > Firmware Update. 3. Check for updates and install version 5.19.117. 4. Reboot device after installation completes.
🔧 Temporary Workarounds
Network Isolation
allRemove device from internet exposure and restrict network access
Disable Remote Access
allTurn off remote access features in device settings
🧯 If You Can't Patch
- Isolate device on separate VLAN with strict firewall rules
- Disable all remote access features and require VPN for access
🔍 How to Verify
Check if Vulnerable:
Check firmware version in device web interface under Settings > Firmware UpdateCheck Version:
Not applicable - check via web interface onlyVerify Fix Applied:
Confirm firmware version shows 5.19.117 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful access
Network Indicators:
- Unusual outbound connections from device
- Traffic to known malicious IPs
SIEM Query:
source="mycloud" AND (event="command_execution" OR event="shell_execution")