CVE-2024-25995
📋 TL;DR
CVE-2024-25995 allows unauthenticated remote attackers to execute arbitrary code with root privileges or cause denial of service by exploiting improper input validation in configuration modification. This critical vulnerability affects systems running vulnerable versions of the software with default configurations.
💻 Affected Systems
- Specific product information not provided in references - appears to be a software component with configuration interface
📦 What is this software?
Charx Sec 3000 Firmware by Phoenixcontact
Charx Sec 3050 Firmware by Phoenixcontact
Charx Sec 3100 Firmware by Phoenixcontact
Charx Sec 3150 Firmware by Phoenixcontact
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root-level remote code execution leading to data theft, ransomware deployment, or persistent backdoor installation.
Likely Case
Remote code execution leading to service disruption, data exfiltration, or lateral movement within the network.
If Mitigated
Limited impact through network segmentation and proper access controls, potentially reduced to denial of service only.
🎯 Exploit Status
Unauthenticated remote exploitation with CVSS 9.8 suggests relatively straightforward attack vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://cert.vde.com/en/advisories/VDE-2024-011
Restart Required: Yes
Instructions:
1. Check vendor advisory for specific patch version
2. Apply security update from official vendor channels
3. Restart affected services
4. Verify patch application
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict network access to configuration interface using firewall rules
iptables -A INPUT -p tcp --dport [CONFIG_PORT] -j DROP
ufw deny [CONFIG_PORT]
Authentication Enforcement
allEnable authentication for configuration interface if supported
Check product documentation for authentication configuration
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable systems
- Deploy web application firewall with input validation rules
🔍 How to Verify
Check if Vulnerable:
Check system version against vendor advisory and test for unauthenticated configuration modification accessCheck Version:
Check product-specific version command (not provided in references)Verify Fix Applied:
Verify patch version installation and test that unauthenticated configuration modification is no longer possible📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access to configuration endpoints
- Unusual configuration changes
- Process execution from configuration interface
Network Indicators:
- Unusual traffic to configuration ports from external sources
- Large payloads sent to configuration endpoints
SIEM Query:
source_ip=external AND dest_port=[CONFIG_PORT] AND auth_result=failed