CVE-2024-55063
📋 TL;DR
Multiple code injection vulnerabilities in EasyVirt DC NetScope allow remote authenticated attackers to execute arbitrary code via various parameters. This affects all users of EasyVirt DC NetScope version 8.7.0 and earlier. Attackers can achieve remote code execution with authenticated access.
💻 Affected Systems
- EasyVirt DC NetScope
📦 What is this software?
Dc Netscope by Easyvirt
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the affected system, potentially leading to data theft, lateral movement, and persistent backdoors.
Likely Case
Remote code execution leading to unauthorized access, data exfiltration, and potential deployment of malware or ransomware.
If Mitigated
Limited impact if proper network segmentation, authentication controls, and input validation are in place, though risk remains significant.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making weaponization likely. Requires authenticated access but exploitation is straightforward.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not provided in references
Restart Required: No
Instructions:
1. Check vendor website for security updates. 2. Apply any available patches for version >8.7.0. 3. Verify fix by testing affected endpoints.
🔧 Temporary Workarounds
Input Validation Filter
allImplement strict input validation to block malicious characters in affected parameters.
Not applicable - requires code changes
Network Access Restriction
linuxRestrict access to affected endpoints to trusted IP addresses only.
iptables -A INPUT -p tcp --dport [PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [PORT] -j DROP
🧯 If You Can't Patch
- Isolate affected systems in a segmented network zone with strict access controls.
- Implement web application firewall (WAF) rules to block malicious input patterns in affected parameters.
🔍 How to Verify
Check if Vulnerable:
Check if EasyVirt DC NetScope version is 8.7.0 or earlier via admin interface or configuration files.Check Version:
Check application configuration or admin panel for version information.Verify Fix Applied:
Test affected endpoints (/international/keyboard/options, /international/settings/keyboard, /international/settings/timezone) with malicious payloads to confirm they are blocked.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to affected endpoints with suspicious parameter values
- System commands executed from web application context
Network Indicators:
- HTTP requests containing shell metacharacters or command injection patterns in lang, keyboard_layout, keyboard_variant, or timezone parameters
SIEM Query:
source="web_logs" AND (url_path="/international/keyboard/options" OR url_path="/international/settings/keyboard" OR url_path="/international/settings/timezone") AND (param_value MATCHES "[;|&`$()]" OR param_value CONTAINS "cmd" OR param_value CONTAINS "bash")