CVE-2023-50382
📋 TL;DR
This CVE describes three OS command injection vulnerabilities in Realtek rtl819x Jungle SDK's boa formWsc functionality. Attackers can execute arbitrary commands by sending specially crafted HTTP requests targeting the peerPin parameter. This affects devices using Realtek rtl819x Jungle SDK v3.4.11, potentially including various embedded systems and networking equipment.
💻 Affected Systems
- Realtek rtl819x Jungle SDK
- Devices using Realtek rtl819x chipsets with Jungle SDK
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with system privileges, install persistent backdoors, pivot to other network devices, and exfiltrate sensitive data.
Likely Case
Remote code execution leading to device takeover, network reconnaissance, and potential lateral movement within the network.
If Mitigated
Limited impact if proper network segmentation, input validation, and least privilege principles are implemented.
🎯 Exploit Status
Exploitation requires sending crafted HTTP requests to the vulnerable endpoint. The Talos Intelligence reports provide technical details that could be used to create exploits.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official vendor advisory found
Restart Required: Yes
Instructions:
1. Check with device manufacturer for firmware updates
2. Apply any available patches
3. Reboot affected devices after patching
4. Verify the fix by testing the vulnerability
🔧 Temporary Workarounds
Network Access Control
linuxRestrict access to the boa web server interface
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
Disable Vulnerable Service
linuxDisable boa web server if not required
systemctl stop boa
systemctl disable boa
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices
- Deploy web application firewall (WAF) with command injection rules
🔍 How to Verify
Check if Vulnerable:
Check if device uses Realtek rtl819x Jungle SDK v3.4.11 and has boa web server running. Test with controlled payloads to peerPin parameter.Check Version:
Check device firmware version through web interface or CLI: cat /proc/version or check manufacturer documentationVerify Fix Applied:
Test the vulnerable endpoint with safe payloads to confirm command injection is no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to formWsc endpoints
- Suspicious command execution in system logs
- Multiple failed authentication attempts
Network Indicators:
- HTTP requests containing shell metacharacters in peerPin parameter
- Unexpected outbound connections from embedded devices
SIEM Query:
source="boa_access.log" AND (uri="*formWsc*" AND (param="*peerPin*" AND value="*;*" OR value="*|*" OR value="*`*"))