CVE-2023-29805
📋 TL;DR
CVE-2023-29805 is a command injection vulnerability in WFS-SR03 v1.0.3 that allows attackers to execute arbitrary commands on affected systems via the pro_stor_canceltrans_handler_part_19 function. This affects organizations using the vulnerable WFS-SR03 software version, potentially allowing complete system compromise.
💻 Affected Systems
- WFS-SR03
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise leading to data theft, ransomware deployment, lateral movement within networks, and persistent backdoor installation.
Likely Case
Unauthenticated remote code execution allowing attackers to gain shell access, install malware, or pivot to other systems.
If Mitigated
Limited impact if proper network segmentation, least privilege, and input validation are implemented.
🎯 Exploit Status
Command injection vulnerabilities typically have low exploitation complexity once the vulnerable endpoint is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Contact vendor for patched firmware version
2. Backup current configuration
3. Upload and install patched firmware
4. Verify installation and restore configuration if needed
🔧 Temporary Workarounds
Network Isolation
linuxIsolate WFS-SR03 devices from internet and restrict network access
iptables -A INPUT -s 0.0.0.0/0 -p tcp --dport [WFS_PORT] -j DROP
Input Validation Proxy
allDeploy a reverse proxy with strict input validation for the vulnerable endpoint
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices
- Deploy web application firewall with command injection rules
🔍 How to Verify
Check if Vulnerable:
Check firmware version via device web interface or SSH: cat /etc/version or similar commandCheck Version:
ssh admin@device_ip 'cat /etc/version' or check web admin interfaceVerify Fix Applied:
Verify firmware version is updated beyond v1.0.3 and test the vulnerable endpoint with safe payloads📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by successful access
- Suspicious process creation from web service
Network Indicators:
- Unusual outbound connections from WFS-SR03 device
- Traffic to known malicious IPs
- Unexpected port scanning from device
SIEM Query:
source="WFS-SR03" AND (event="command_execution" OR event="shell_spawn")